10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             

Commission File Number	Exact Name of Registrant as Specified in its Charter, Principal Executive Office Address and Telephone Number					State of Incorporation	I.R.S. Employer Identification No.
001-06033	United Airlines Holdings, Inc.					Delaware	36-2675207
	233 South Wacker Drive,		Chicago,	Illinois	60606
	(872)	825-4000
001-10323	United Airlines, Inc.					Delaware	74-2099724
	233 South Wacker Drive,		Chicago,	Illinois	60606
	(872)	825-4000

Securities registered pursuant to Section 12(b) of the Act
Registrant	Title of Each Class	Trading Symbol	Name of Each Exchange on Which Registered
United Airlines Holdings, Inc.	Common Stock, $0.01 par value	UAL	The Nasdaq Stock Market LLC
United Airlines Holdings, Inc.	Preferred Stock Purchase Rights	None	The Nasdaq Stock Market LLC
United Airlines, Inc.	None	None	None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

United Airlines Holdings, Inc. Yes ☒ No ☐ United Airlines, Inc. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this Chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

United Airlines Holdings, Inc. Yes ☒ No ☐ United Airlines, Inc. Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

United Airlines Holdings, Inc.	Large accelerated filer	☒	Accelerated filer	☐	Non-accelerated filer	☐	Smaller reporting company	☐	Emerging growth company	☐
United Airlines, Inc.	Large accelerated filer	☐	Accelerated filer	☐	Non-accelerated filer	☒	Smaller reporting company	☐	Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

United Airlines Holdings, Inc.	☐
United Airlines, Inc.	☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

United Airlines Holdings, Inc.	Yes	☐	No	☒
United Airlines, Inc.	Yes	☐	No	☒

The number of shares outstanding of each of the issuer's classes of common stock as of April 11, 2024 is shown below:

United Airlines Holdings, Inc.	328,803,431	shares of common stock ($0.01 par value)
United Airlines, Inc.	1,000	shares of common stock ($0.01 par value) (100% owned by United Airlines Holdings, Inc.)

OMISSION OF CERTAIN INFORMATION

This combined Quarterly Report on Form 10-Q is separately filed by United Airlines Holdings, Inc. and United Airlines, Inc. United Airlines, Inc. meets the conditions set forth in General Instruction H(1)(a) and (b) of Form 10-Q and is therefore filing this form with the reduced disclosure format allowed under that General Instruction.

United Airlines Holdings, Inc.

United Airlines, Inc.

Quarterly Report on Form 10-Q

For the Quarterly Period Ended March 31, 2024

Table of Contents

	Page
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
United Airlines Holdings, Inc.:
Statements of Consolidated Operations	3
Statements of Consolidated Comprehensive Income (Loss)	4
Consolidated Balance Sheets	5
Condensed Statements of Consolidated Cash Flows	7
Statement of Consolidated Stockholders' Equity	8
United Airlines, Inc.:
Statements of Consolidated Operations	9
Statements of Consolidated Comprehensive Income (Loss)	10
Consolidated Balance Sheets	11
Condensed Statements of Consolidated Cash Flows	13
Statement of Consolidated Stockholder's Equity	14
Combined Notes to Condensed Consolidated Financial Statements (United Airlines Holdings, Inc. and United Airlines, Inc.)	15
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3. Quantitative and Qualitative Disclosures About Market Risk	32
Item 4. Controls and Procedures	32
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	32
Item 1A. Risk Factors	32
Item 2. Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities	32
Item 5. Other Information	32
Item 6. Exhibits	33
Exhibit Index	33
Signatures	34

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

UNITED AIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED)

(In millions, except per share amounts)

	Three Months Ended March 31,
	2024		2023
Operating revenue:
Passenger	$	11,313	$	10,274
Cargo	391		398
Other	835		757
Total operating revenue	12,539		11,429
Operating expense:
Salaries and related costs	3,932		3,322
Aircraft fuel	2,954		3,174
Landing fees and other rent	804		717
Aircraft maintenance materials and outside repairs	773		702
Depreciation and amortization	708		655
Regional capacity purchase	585		615
Distribution expenses	480		403
Aircraft rent	43		56
Special charges	13		14
Other	2,148		1,814
Total operating expense	12,440		11,472
Operating income (loss)	99		(43)
Nonoperating income (expense):
Interest expense	(454)		(486)
Interest income	177		170
Interest capitalized	61		38
Unrealized gains (losses) on investments, net	(37)		24
Miscellaneous, net	(10)		41
Total nonoperating expense, net	(263)		(213)
Loss before income tax benefit	(164)		(256)
Income tax benefit	(40)		(62)
Net loss	$	(124)	$	(194)
Loss per share, basic and diluted	$	(0.38)	$	(0.59)

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

3

UNITED AIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

(In millions)

	Three Months Ended March 31,
	2024		2023
Net loss	$	(124)	$	(194)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(17)		(35)
Investments and other	(2)		21
Total other comprehensive loss, net of tax	(19)		(14)
Total comprehensive loss, net	$	(143)	$	(208)

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

4

UNITED AIRLINES HOLDINGS, INC.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(In millions, except shares)

 

	March 31, 2024		December 31, 2023
ASSETS
Current assets:
Cash and cash equivalents	$	8,401	$	6,058
Short-term investments	5,591		8,330
Restricted cash	40		31
Receivables, less allowance for credit losses (2024 — $19; 2023 — $18)	2,259		1,898
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2024 — $721; 2023 — $689)	1,675		1,561
Prepaid expenses and other	730		609
Total current assets	18,696		18,487
Operating property and equipment:
Flight equipment	49,277		48,448
Other property and equipment	10,940		10,527
Purchase deposits for flight equipment	3,558		3,550
Total operating property and equipment	63,775		62,525
Less — Accumulated depreciation and amortization	(23,305)		(22,710)
Total operating property and equipment, net	40,470		39,815
Operating lease right-of-use assets	3,895		3,914
Other assets:
Goodwill	4,527		4,527
Intangibles, less accumulated amortization (2024 — $1,339; 2023 — $1,495)	2,717		2,725
Restricted cash	244		245
Investments in affiliates and other, less allowance for credit losses (2024 — $32; 2023 — $38)	1,353		1,391
Total other assets	8,841		8,888
Total assets	$	71,902	$	71,104

(continued on next page)

5

UNITED AIRLINES HOLDINGS, INC.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(In millions, except shares)

	March 31, 2024		December 31, 2023
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,344	$	3,835
Accrued salaries and benefits	2,128		2,940
Advance ticket sales	9,601		6,704
Frequent flyer deferred revenue	3,086		3,095
Current maturities of long-term debt	3,958		4,018
Current maturities of operating leases	557		576
Current maturities of finance leases	117		172
Current maturities of other financial liabilities	63		57
Other	910		806
Total current liabilities	24,764		22,203
Long-term debt	23,059		25,057
Long-term obligations under operating leases	4,517		4,503
Long-term obligations under finance leases	78		91
Other liabilities and deferred credits:
Frequent flyer deferred revenue	4,193		4,048
Pension liability	985		968
Postretirement benefit liability	625		637
Deferred income taxes	545		594
Other financial liabilities	2,495		2,265
Other	1,453		1,414
Total other liabilities and deferred credits	10,296		9,926
Commitments and contingencies
Stockholders' equity:
Preferred stock	—		—
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 328,803,086 and 328,018,739 shares at March 31, 2024 and December 31, 2023, respectively	4		4
Additional capital invested	8,973		8,992
Stock held in treasury, at cost	(3,372)		(3,441)
Retained earnings	3,664		3,831
Accumulated other comprehensive loss	(81)		(62)
Total stockholders' equity	9,188		9,324
Total liabilities and stockholders' equity	$	71,902	$	71,104

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

6

UNITED AIRLINES HOLDINGS, INC.

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED)

(In millions)

	Three Months Ended March 31,
	2024		2023
Cash Flows from Operating Activities:
Net cash provided by operating activities	$	2,847	$	3,142
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns	(1,366)		(1,843)
Purchases of short-term and other investments	(866)		(4,193)
Proceeds from sale of short-term and other investments	3,657		4,061
Proceeds from sale of property and equipment	20		1
Other, net	(4)		6
Net cash provided by (used in) investing activities	1,441		(1,968)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees	3,111		288
Payments of long-term debt, finance leases and other financing liabilities	(5,031)		(820)
Other, net	(18)		(31)
Net cash used in financing activities	(1,938)		(563)
Net increase in cash, cash equivalents and restricted cash	2,350		611
Cash, cash equivalents and restricted cash at beginning of the period	6,335		7,421
Cash, cash equivalents and restricted cash at end of the period (a)	$	8,685	$	8,032
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other	$	—	$	200
Right-of-use assets acquired through operating leases	132		295
Lease modifications and lease conversions	14		23
Investment interests received in exchange for loans, goods and services	18		21

(a) The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet:

Current assets:
Cash and cash equivalents	$	8,401	$	7,634
Restricted cash — Current	40		173
Restricted cash — Non-Current	244		225
Total cash, cash equivalents and restricted cash	$	8,685	$	8,032

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

7

UNITED AIRLINES HOLDINGS, INC.

STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY (UNAUDITED)

(In millions)

	Common Stock			Additional Capital Invested		Treasury Stock		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Total
	Shares	Amount
Balance at December 31, 2023	328.0	$	4	$	8,992	$	(3,441)	$	3,831	$	(62)	$	9,324
Net loss	—	—		—		—		(124)		—		(124)
Other comprehensive loss	—	—		—		—				(19)		(19)
Stock-settled share-based compensation	—	—		25		—		—		—		25
Stock issued for share-based awards, net of shares withheld for tax	0.8	—		(44)		69		(43)		—		(18)
Balance at March 31, 2024	328.8	$	4	$	8,973	$	(3,372)	$	3,664	$	(81)	$	9,188
Balance at December 31, 2022	326.9	$	4	$	8,986	$	(3,534)	$	1,265	$	175	$	6,896
Net loss	—	—		—		—		(194)		—		(194)
Other comprehensive loss	—	—		—		—		—		(14)		(14)
Stock-settled share-based compensation	—	—		11		—		—		—		11
Stock issued for share-based awards, net of shares withheld for tax	1.1	—		(71)		91		(51)		—		(31)
Balance at March 31, 2023	328.0	$	4	$	8,926	$	(3,443)	$	1,020	$	161	$	6,668

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

8

UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED)

(In millions)

	Three Months Ended March 31,
	2024		2023
Operating revenue:
Passenger	$	11,313	$	10,274
Cargo	391		398
Other	835		757
Total operating revenue	12,539		11,429
Operating expense:
Salaries and related costs	3,932		3,322
Aircraft fuel	2,954		3,174
Landing fees and other rent	804		717
Aircraft maintenance materials and outside repairs	773		702
Depreciation and amortization	708		655
Regional capacity purchase	585		615
Distribution expenses	480		403
Aircraft rent	43		56
Special charges	13		14
Other	2,148		1,814
Total operating expense	12,440		11,472
Operating income (loss)	99		(43)
Nonoperating income (expense):
Interest expense	(454)		(486)
Interest income	177		170
Interest capitalized	61		38
Unrealized gains (losses) on investments, net	(37)		24
Miscellaneous, net	(10)		41
Total nonoperating expense, net	(263)		(213)
Loss before income tax benefit	(164)		(256)
Income tax benefit	(40)		(62)
Net loss	$	(124)	$	(194)

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

9

UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

(In millions)

	Three Months Ended March 31,
	2024		2023
Net loss	$	(124)	$	(194)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(17)		(35)
Investments and other	(2)		21
Total other comprehensive loss, net of tax	(19)		(14)
Total comprehensive loss, net	$	(143)	$	(208)

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

10

UNITED AIRLINES, INC.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(In millions, except shares)

	March 31, 2024		December 31, 2023
ASSETS
Current assets:
Cash and cash equivalents	$	8,401	$	6,058
Short-term investments	5,591		8,330
Restricted cash	40		31
Receivables, less allowance for credit losses (2024 — $19; 2023 — $18)	2,259		1,898
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2024 — $721; 2023 — $689)	1,675		1,561
Prepaid expenses and other	730		609
Total current assets	18,696		18,487
Operating property and equipment:
Flight equipment	49,277		48,448
Other property and equipment	10,940		10,527
Purchase deposits for flight equipment	3,558		3,550
Total operating property and equipment	63,775		62,525
Less — Accumulated depreciation and amortization	(23,305)		(22,710)
Total operating property and equipment, net	40,470		39,815
Operating lease right-of-use assets	3,895		3,914
Other assets:
Goodwill	4,527		4,527
Intangibles, less accumulated amortization (2024 — $1,339; 2023 — $1,495)	2,717		2,725
Restricted cash	244		245
Investments in affiliates and other, less allowance for credit losses (2024 — $32; 2023 —$38)	1,353		1,391
Total other assets	8,841		8,888
Total assets	$	71,902	$	71,104

(continued on next page)

11

UNITED AIRLINES, INC.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(In millions, except shares)

	March 31, 2024		December 31, 2023
LIABILITIES AND STOCKHOLDER'S EQUITY
Current liabilities:
Accounts payable	$	4,344	$	3,835
Accrued salaries and benefits	2,128		2,940
Advance ticket sales	9,601		6,704
Frequent flyer deferred revenue	3,086		3,095
Current maturities of long-term debt	3,958		4,018
Current maturities of operating leases	557		576
Current maturities of finance leases	117		172
Current maturities of other financial liabilities	63		57
Other	912		808
Total current liabilities	24,766		22,205
Long-term debt	23,059		25,057
Long-term obligations under operating leases	4,517		4,503
Long-term obligations under finance leases	78		91
Other liabilities and deferred credits:
Frequent flyer deferred revenue	4,193		4,048
Pension liability	985		968
Postretirement benefit liability	625		637
Deferred income taxes	573		622
Other financial liabilities	2,495		2,265
Other	1,453		1,414
Total other liabilities and deferred credits	10,324		9,954
Commitments and contingencies
Stockholder's equity:
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at both March 31, 2024 and December 31, 2023	—		—
Additional capital invested	507		482
Retained earnings	6,212		6,336
Accumulated other comprehensive loss	(81)		(62)
Payable to parent	2,520		2,538
Total stockholder's equity	9,158		9,294
Total liabilities and stockholder's equity	$	71,902	$	71,104

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

12

UNITED AIRLINES, INC.

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED)

(In millions)

	Three Months Ended March 31,
	2024		2023
Cash Flows from Operating Activities:
Net cash provided by operating activities	$	2,829	$	3,111
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns	(1,366)		(1,843)
Purchases of short-term and other investments	(866)		(4,193)
Proceeds from sale of short-term and other investments	3,657		4,061
Proceeds from sale of property and equipment	20		1
Other, net	(4)		6
Net cash provided by (used in) investing activities	1,441		(1,968)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees	3,111		288
Payments of long-term debt, finance leases and other financing liabilities	(5,031)		(820)
Net cash used in financing activities	(1,920)		(532)
Net increase in cash, cash equivalents and restricted cash	2,350		611
Cash, cash equivalents and restricted cash at beginning of the period	6,335		7,421
Cash, cash equivalents and restricted cash at end of the period (a)	$	8,685	$	8,032
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other	$	—	$	200
Right-of-use assets acquired through operating leases	132		295
Lease modifications and lease conversions	14		23
Investment interests received in exchange for loans, goods and services	18		21

(a) The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet:

Current assets:
Cash and cash equivalents	$	8,401	$	7,634
Restricted cash — Current	40		173
Restricted cash — Non-Current	244		225
Total cash, cash equivalents and restricted cash	$	8,685	$	8,032

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

13

UNITED AIRLINES, INC.

STATEMENTS OF CONSOLIDATED STOCKHOLDER'S EQUITY (UNAUDITED)

(In millions)

	Additional Capital Invested		Retained Earnings		Accumulated Other Comprehensive Income (Loss)		Payable to Parent		Total
Balance at December 31, 2023	$	482	$	6,336	$	(62)	$	2,538	$	9,294
Net loss	—		(124)		—		—		(124)
Other comprehensive loss	—		—		(19)		—		(19)
Stock-settled share-based compensation	25		—		—		—		25
Other	—		—		—		(18)		(18)
Balance at March 31, 2024	$	507	$	6,212	$	(81)	$	2,520	$	9,158
Balance at December 31, 2022	$	403	$	3,716	$	175	$	2,571	$	6,865
Net loss	—		(194)		—		—		(194)
Other comprehensive loss	—		—		(14)		—		(14)
Stock-settled share-based compensation	11		—		—		—		11
Other	—		—		—		(32)		(32)
Balance at March 31, 2023	$	414	$	3,522	$	161	$	2,539	$	6,636

The accompanying Combined Notes to Condensed Consolidated Financial Statements are an integral part of these statements.

14

UNITED AIRLINES HOLDINGS, INC. AND UNITED AIRLINES, INC.

COMBINED NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United"). This Quarterly Report on Form 10-Q is a combined report of UAL and United, including their respective consolidated financial statements. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United's operating revenues and operating expenses comprise nearly 100% of UAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures, and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words "we," "our," "us," and the "Company" in this report for disclosures that relate to all of UAL and United.

The UAL and United unaudited condensed consolidated financial statements shown here have been prepared as required by the U.S. Securities and Exchange Commission (the "SEC"). Some information and footnote disclosures normally included in financial statements that comply with accounting principles generally accepted in the United States ("GAAP") have been condensed or omitted as permitted by the SEC. The financial statements include all adjustments, including normal recurring adjustments and other adjustments, which are considered necessary for a fair presentation of the Company's financial position and results of operations for interim periods presented. The UAL and United financial statements should be read together with the information included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 (the "2023 Form 10-K"). The Company's quarterly financial data is subject to seasonal fluctuations. Historically its second and third quarter financial results have reflected higher travel demand, and were better than its first and fourth quarter financial results.

NOTE 1 — REVENUE

Revenue by Geography. The table below presents the Company's operating revenue by principal geographic region (as defined by the U.S. Department of Transportation) (in millions):

	Three Months Ended March 31,
	2024		2023
Domestic (U.S. and Canada)	$	7,673	$	7,167
Atlantic	1,833		1,832
Latin America	1,445		1,316
Pacific	1,588		1,114
Total	$	12,539	$	11,429

Advance Ticket Sales. The Company defers amounts related to future travel in its Advance ticket sales liability account. All tickets sold at any given point in time have travel dates through the next 12 months. The Company estimates the value of Advance ticket sales that will expire unused ("breakage") and recognizes revenue and any changes in estimates in proportion to the usage of the related tickets. To determine breakage, the Company uses its historical experience with expired tickets and certificates and other facts, such as recent aging trends, program changes and modifications that could affect the ultimate expiration patterns.

In the three months ended March 31, 2024 and 2023, the Company recognized approximately $4.0 billion and $3.5 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those periods.

Ancillary Fees. The Company charges fees, separately from ticket sales, for certain ancillary services that are directly related to passengers' travel. This includes fees for baggage, premium seats, inflight amenities and other ticket-related fees. These ancillary fees are part of the travel performance obligation and, as such, are recognized as passenger revenue when the travel occurs. The Company recorded $984 million and $892 million of ancillary fees within passenger revenue in the three months ended March 31, 2024 and 2023, respectively.

15

Frequent Flyer Accounting. The table below presents a roll forward of Frequent flyer deferred revenue (in millions):

	Three Months Ended March 31,
	2024		2023
Total Frequent flyer deferred revenue - beginning balance	$	7,143	$	6,675
Total miles awarded	840		747
Travel miles redeemed	(665)		(531)
Non-travel miles redeemed	(39)		(31)
Total Frequent flyer deferred revenue - ending balance	$	7,279	$	6,860

In the three months ended March 31, 2024 and 2023, the Company recognized, in Other operating revenue, $714 million and $646 million, respectively, related to the marketing, advertising, non-travel miles redeemed (net of related costs) and other travel-related benefits of the mileage revenue associated with our various partner agreements including, but not limited to, our JPMorgan Chase Bank, N.A. MileagePlus co-brand agreement. The portion related to the MileagePlus miles awarded of the total amounts received from our various partner agreements is deferred and presented in the table above as an increase to the Frequent flyer deferred revenue. We determine the current portion of that account based on expected redemptions in the next 12 months.

NOTE 2 — LOSS PER SHARE

The following table shows the computation of basic and diluted earnings per share, the latter of which uses the treasury stock method to calculate the dilutive effect of UAL's potential common stock (in millions, except per share amounts):

	Three Months Ended March 31,
	2024		2023
Loss available to common stockholders	$	(124)	$	(194)
Weighted-average shares outstanding, basic and diluted	328.3		327.4
Loss per share, basic and diluted	$	(0.38)	$	(0.59)
Potentially dilutive securities (a)
Stock warrants (b)	3.5		1.5
Employee stock awards	0.5		0.7
(a) Weighted-average potentially dilutive securities outstanding excluded from the computation of diluted earnings per share because the securities would have had an antidilutive effect.
(b) Represent warrants issued to the U.S. Treasury Department ("Treasury") pursuant to the payroll support program, including extensions, and the loan program established under the Coronavirus Aid, Relief, and Economic Security Act. The Company issued to Treasury warrants to purchase up to approximately 10 million shares of UAL common stock at exercise prices ranging from $31.50 to $53.92 and expiration dates ranging from April 20, 2025 to June 10, 2026. All warrants were outstanding as of March 31, 2024.

16

NOTE 3 — ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The table below presents the components of the Company's accumulated other comprehensive income (loss), net of tax ("AOCI") (in millions):

	Pension and Other Postretirement Liabilities			Investments and Other		Deferred Taxes (a)		Total
Balance at December 31, 2023	$	289		$	(4)	$	(347)	$	(62)
Changes in value	3			(2)		—		1
Amounts reclassified to earnings	(25)		(b)	—		5		(20)
Balance at March 31, 2024	$	267		$	(6)	$	(342)	$	(81)
Balance at December 31, 2022	$	626		$	(35)	$	(416)	$	175
Changes in value	(9)			27		(4)		14
Amounts reclassified to earnings	(35)		(b)	—		7		(28)
Balance at March 31, 2023	$	582		$	(8)	$	(413)	$	161

(a) Includes approximately $285 million of deferred income tax expense that will not be recognized in net income until the related pension and postretirement benefit obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations.

(b) This AOCI component is included in the computation of net periodic pension and other postretirement costs, specifically the following components: amortization of unrecognized (gain) loss, amortization of prior service credit and other (see Note 5 of this report for additional information).

NOTE 4 — INCOME TAXES

The Company's effective tax rates for the three months ended March 31, 2024 and 2023 were 24.4% and 24.2%, respectively. The provision for income taxes is based on the estimated annual effective tax rate, which represents a blend of federal, state and foreign taxes and includes the impact of certain nondeductible items.

NOTE 5 — EMPLOYEE BENEFIT PLANS

Defined Benefit Pension and Other Postretirement Benefit Plans. The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):

	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of  Consolidated Operations
	2024		2023		2024		2023
Service cost	$	34	$	31	$	1	$	1	Salaries and related costs
Interest cost	57		55		10		10		Miscellaneous, net
Expected return on plan assets	(69)		(63)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss	5		2		(7)		(9)		Miscellaneous, net
Amortization of prior service credit	—		—		(23)		(28)		Miscellaneous, net
Total	$	27	$	25	$	(19)	$	(26)

17

NOTE 6 — FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE

The table below presents disclosures about the financial assets and liabilities measured at fair value on a recurring basis in UAL's financial statements (in millions):

	March 31, 2024								December 31, 2023
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	8,401	$	8,401	$	—	$	—	$	6,058	$	6,058	$	—	$	—
Restricted cash — current	40		40		—		—		31		31		—		—
Restricted cash — non-current	244		244		—		—		245		245		—		—
Short-term investments:
U.S. government and agency notes	5,518		—		5,518		—		8,257		—		8,257		—
Certificates of deposit placed through an account registry service ("CDARS")	73		—		73		—		73		—		73		—
Long-term investments:
Equity securities	116		116		—		—		177		177		—		—

Investments presented in the table above have the same fair value as their carrying value.

Restricted cash - current — Primarily includes amounts to be used for the payment of fees, principal and interest on senior secured notes and a secured term loan facility (the "MileagePlus Financing") secured by substantially all of the assets of Mileage Plus Holdings, LLC, a direct wholly-owned subsidiary of United.

Restricted cash - non-current — Primarily includes collateral associated with the MileagePlus Financing, collateral for letters of credit and collateral associated with facility leases and other insurance-related obligations.

Short-term investments — The short-term investments shown in the table above are classified as available-for-sale and have remaining maturities of 17 months or less.

Long-term investments: Equity securities — Represents equity and equity-linked securities (such as vested warrants) that make up United's investments in Azul Linhas Aéreas Brasileiras S.A., Archer Aviation Inc., Eve Holding, Inc. and Mesa Air Group, Inc.

Other fair value information. The table below presents the carrying values and estimated fair values of financial instruments not presented in the tables above (in millions). Carrying amounts include any related discounts, premiums and issuance costs:

	March 31, 2024										December 31, 2023
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	27,017	$	26,480	$	—	$	20,319	$	6,161	$	29,075	$	28,302	$	—	$	22,543	$	5,759

Fair value of the financial instruments included in the tables above was determined as follows:

Description	Fair Value Methodology
Cash and cash equivalents and Restricted cash (current and non-current)	The carrying amounts of these assets approximate fair value.
Short-term and Long-term investments	Fair value is based on (a) the trading prices of the investment or similar instruments or (b) broker quotes obtained by third-party valuation services.
Long-term debt	Fair values were based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities or assets.

Equity Method Investments. As of March 31, 2024, United holds investments, accounted for using the equity method, with a combined carrying value of approximately $230 million. Significant equity method investments are described below:

•Republic Airways Holdings Inc. United holds a 19% minority interest in Republic Airways Holdings Inc., which is the parent company of Republic Airways Inc. ("Republic"). Republic currently operates 66 regional aircraft under capacity purchase agreements ("CPAs") that have terms through 2035.

18

•CommuteAir LLC. United owns a 40% minority ownership stake in CommuteAir LLC. CommuteAir currently operates 53 regional aircraft under a CPA that has a term through 2026.

•United Airlines Ventures Sustainable Flight Fund (the "Fund"). During the first quarter of 2023, United launched, through its corporate venture capital arm, United Airlines Ventures, Ltd., an investment vehicle designed to support start-ups focused on decarbonizing air travel by accelerating the research, production and technologies associated with sustainable aviation fuel (SAF). As of March 31, 2024, the Company indirectly holds a 33% ownership interest in the Fund.

Other Investments. As of March 31, 2024, United has equity investments in Abra Group Limited, a multinational airline holding company, JetSuiteX, Inc., an independent air carrier doing business as JSX, as well as a number of companies with emerging technologies and sustainable solutions. None of these investments have readily determinable fair values. We account for these investments at cost less impairment, adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer. As of March 31, 2024, the carrying value of these investments was $421 million.

Notes Receivable. As of March 31, 2024, the Company has $86 million of notes receivable, net of allowance for credit losses, the majority of which is from certain of its regional carriers. The current portions of the notes receivable are recorded in Receivables, less allowance for credit losses. The long-term portion of the notes receivable is recorded in Investments in affiliates and other, less allowance for credit losses on the Company's consolidated balance sheet.

NOTE 7 — COMMITMENTS AND CONTINGENCIES

Commitments. As of March 31, 2024, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") as presented in the table below:

		Contractual Aircraft Deliveries			Expected Aircraft Deliveries (b)
Aircraft Type	Number of Firm  Commitments (a)	Last Nine Months of 2024	2025	After 2025	Last Nine Months of 2024	2025	After 2025
787	150	8	18	124	5	12	133
737 MAX 8	36	36	—	—	19	17	—
737 MAX 9	144	34	40	70	10	44	90
737 MAX 10	167	—	—	167	—	—	167
A321neo	123	23	38	62	22	24	77
A321XLR	50	—	8	42	—	1	49
A350	45	—	—	45	—	—	45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments to contractual delivery schedules as communicated by Boeing and Airbus or estimated by United. However, aircraft deliveries are subject to a number of variables, as further described in Part I, Item 1A. Risk Factors of the 2023 Form 10-K, and we cannot guarantee delivery of any particular aircraft at any specific time notwithstanding firm purchase commitments.

The aircraft listed in the table above are scheduled for delivery through 2033. The amount and timing of the Company's future capital commitments could change to the extent that: (i) the Company and the aircraft manufacturers, with whom the Company has existing orders for new aircraft, agree to modify the contracts governing those orders; (ii) rights are exercised pursuant to the relevant agreements to cancel deliveries or modify the timing of deliveries; or (iii) the aircraft manufacturers are unable to deliver in accordance with the terms of those orders.

On April 14, 2024, the Company entered into confidential arrangements with Boeing with respect to compensation for financial damages incurred in first quarter of 2024 due to the Federal Aviation Administration grounding of the Boeing 737 MAX 9 aircraft, and a confidential agreement to accommodate certification delays for the Boeing 737 MAX 10 aircraft. The compensation provided by Boeing for the grounding damages and in connection with rescheduling deliveries is in the form of credit memos for use on future purchases from Boeing. The Company plans to account for these arrangements as a reduction to the cost basis of the previously-delivered Boeing 737 MAX 9 aircraft and future deliveries of the MAX 9 and MAX 10 aircraft, which is expected to reduce future depreciation expense associated with these aircraft.

The table below summarizes United's firm commitments as of March 31, 2024, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments. Aircraft commitments are based on contractual scheduled aircraft deliveries without any adjustments communicated by Boeing and Airbus or estimated by United but reflecting the discounts related to future deliveries offered as part of the April 14, 2024 arrangements between United and Boeing.

19

(in billions)
Last nine months of 2024	$	7.1
2025	7.4
2026	5.5
2027	4.3
2028	6.4
After 2028	27.1
	$	57.8

In April 2024, the Company signed letters of intent to enter into future leasing arrangements with major aircraft leasing companies for 35 Airbus A321neo aircraft with expected deliveries in 2026 and 2027.

Regional CPAs. During the three months ended March 31, 2024, United amended several of its CPAs with certain of its regional carriers to increase the contractually agreed fees (carrier costs) paid to those carriers and to modify the terms for certain aircraft. Our future commitments under our CPAs are dependent on numerous variables, and are, therefore, difficult to predict. The most important of these variables is the number of scheduled block hours. Although we are not required to purchase a minimum number of block hours under certain of our CPAs, we have set forth below estimates of our future payments under the CPAs based on our assumptions. The actual amounts we pay to our regional operators under CPAs could differ materially from these estimates. United's estimates of its future payments under all of the CPAs do not include the portion of the underlying obligation for any aircraft leased to a regional carrier, or deemed to be leased from other regional carriers, and facility rent. For purposes of calculating these estimates, we have assumed (1) the number of block hours flown is based on our anticipated level of flight activity or at any contractual minimum utilization levels if applicable, whichever is higher, (2) that we will reduce the fleet as rapidly as contractually allowed under each CPA, (3) that aircraft utilization, stage length and load factors will remain constant, (4) that each carrier's operational performance will remain at recent historic levels and (5) an annual projected inflation rate. Based on these assumptions as of March 31, 2024, our estimated future payments through the end of the terms of our CPAs are presented in the table below:

(in billions)
Last nine months of 2024	$	1.9
2025	2.3
2026	2.2
2027	1.8
2028	1.3
After 2028	4.2
	$	13.7

Guarantees. As of March 31, 2024, United is the guarantor of approximately $1.9 billion in aggregate principal amount of tax-exempt special facilities revenue bonds and interest thereon. These bonds, issued by various airport municipalities, are payable solely from rentals paid under long-term agreements with the respective governing bodies. The leasing arrangements associated with these obligations are accounted for as operating leases recognized on the Company's consolidated balance sheet with the associated expense recorded on a straight-line basis over the expected lease term. All of these bonds are due between 2024 and 2041.

As of March 31, 2024, United is the guarantor of $73 million of aircraft mortgage debt issued by one of United's regional carriers. The aircraft mortgage debt is subject to similar increased cost provisions as described below for the Company's debt, and the Company would potentially be responsible for those costs under the guarantees.

Increased Cost Provisions. In United's financing transactions that include loans in which United is the borrower, United typically agrees to reimburse lenders for any reduced returns with respect to the loans due to any change in capital requirements and, in the case of loans with respect to which the interest rate is based on the Secured Overnight Financing Rate (SOFR), for certain other increased costs that the lenders incur in carrying these loans as a result of any change in law, subject, in most cases, to obligations of the lenders to take certain limited steps to mitigate the requirement for, or the amount of, such increased costs. At March 31, 2024, the Company had $10.1 billion of floating rate debt with remaining terms of up to approximately 12 years that are subject to these increased cost provisions. In several financing transactions involving loans or leases from non-U.S. entities, with remaining terms of up to approximately 12 years and an aggregate balance of $6.9 billion, the Company

20

bears the risk of any change in tax laws that would subject loan or lease payments thereunder to non-U.S. entities to withholding taxes, subject to customary exclusions.

Labor. As of March 31, 2024, the Company had approximately 104,500 employees, of whom approximately 83% were represented by various U.S. labor organizations.

On February 23, 2024, United and the International Association of Machinists and Aerospace Workers ratified agreements covering security guards in California and central load planners. The ratified agreements are effective through 2025.

On February 28, 2024, United and the International Brotherhood of Teamsters reached a tentative agreement for an extension to their labor contract. The agreement, if ratified, becomes amendable in December 2028.

NOTE 8 — DEBT

On February 15, 2024, the Company entered into an Amended and Restated Revolving Credit and Guaranty Agreement (the "Revolving Credit Facility") increasing the borrowing capacity by $1.115 billion, which may be drawn upon until February 15, 2029, in the case of any Revolving Loans (as defined in the Revolving Credit Facility) made by the Extending Lenders (as defined in the Revolving Credit Facility), and April 21, 2025, in the case of any Revolving Loans made by the 2024 Non-Extending Lenders (as defined in the Revolving Credit Facility). The revolving loan commitments of the Extending Lenders equal $2.7 billion and the revolving loan commitments of the 2024 Non-Extending Lenders equal $165 million. The Revolving Loans, if any, will bear interest at a variable rate equal to Term SOFR (as defined in the Revolving Credit Facility), generally subject to a floor, plus a credit adjustment spread described in the Revolving Credit Facility, or, at United's election, another rate based on certain market interest rates, also generally subject to a floor, in each case plus a variable margin ranging from 3.00% to 3.50%, in the case of Term SOFR loans, and 2.00% to 2.50%, in the case of loans at other market rates. As of March 31, 2024, we had $2.87 billion undrawn and available under the Revolving Credit Facility.

On April 16, 2024, the Company increased the revolving loan commitments of the Extending Lenders by $100 million. The revolving loan commitments of the Extending Lenders now equal $2.8 billion and the revolving loan commitments of the 2024 Non-Extending Lenders remain $165 million.

On February 22, 2024, the Company also entered into Amendment No. 2 to Term Loan Credit and Guaranty Agreement (as amended, the "Term Loan Facility" and, together with the Revolving Credit Facility, the "Loan Facilities") and (i) used available cash in an amount equal to $1.37 billion to partially prepay the term loans under the 2021 term loans and (ii) borrowed the entire term loan commitment available under the Term Loan Facility in an amount equal to $2.5 billion and used the proceeds of such terms loans (the "Term Loans") to prepay in full the remaining outstanding principal balance under the existing term loan facility. The Term Loans will bear interest at a variable rate equal to Term SOFR (subject to a floor of 0.0%); or, at United's election, another rate based on certain market interest rates (subject to a floor of 1.0%), in each case plus a margin of 2.75%, in the case of Term SOFR loans, and 1.75%, in the case of loans at other market rates. The remaining balance of the Term Loans will mature and be due and payable on February 22, 2031.

The table below presents the Company's contractual principal payments (not including $267 million of unamortized debt discount, premiums and debt issuance costs) as of March 31, 2024 under then-outstanding long-term debt agreements (in millions):

Last nine months of 2024	$	2,936
2025	3,459
2026	5,255
2027	2,486
2028	1,648
After 2028	11,500
	$	27,284

Our debt agreements contain customary terms and conditions as well as various affirmative, negative and financial covenants that, among other things, restrict the ability of the Company and its subsidiaries to incur additional indebtedness and pay dividends or repurchase stock. As of March 31, 2024, UAL and United were in compliance with their respective debt covenants.

21

NOTE 9 — SPECIAL CHARGES

For the three months ended March 31, operating and nonoperating special charges and unrealized (gains) losses on investments in the statements of consolidated operations consisted of the following (in millions):

	Three Months Ended March 31,
	2024		2023
Operating:
(Gains) losses on sale of assets and other special charges	$	13	$	14
Total operating special charges	13		14
Nonoperating:
Nonoperating unrealized (gains) losses on investments, net	37		(24)
Nonoperating debt extinguishment and modification fees	35		—
Total nonoperating special charges and unrealized (gains) losses on investments, net	72		(24)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net	85		(10)
Income tax benefit, net of valuation allowance	(11)		(3)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes	$	74	$	(13)

2024

(Gains) losses on sale of assets and other special charges. During the three months ended March 31, 2024, the Company incurred $13 million of charges primarily consisting of a settlement related to a certain pilot long term disability plan, accelerated depreciation on assets with shortened lives, and other losses on disposal of assets, which were partially offset by a gain from a favorable outcome related to a certain contract dispute as well as gains on sales of assets.

Nonoperating unrealized (gains) losses on investments, net. During the three months ended March 31, 2024, the Company recorded losses of $37 million primarily for the change in the market value of its investments in equity securities.

Nonoperating debt extinguishment and modification fees. During the three months ended March 31, 2024, the Company recorded $35 million of charges primarily related to the refinancing of its 2021 term loans.

2023

(Gains) losses on sale of assets and other special charges. During the three months ended March 31, 2023, the Company recorded $14 million of net charges primarily comprised of accelerated depreciation related to certain of the Company's assets that were retired early and other gains and losses on the sale of assets.

Nonoperating unrealized (gains) losses on investments, net. During the three months ended March 31, 2023, the Company recorded gains of $24 million primarily related to the change in the market value of its investments in equity securities.

22

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

This Management's Discussion and Analysis of Financial Condition and Results of Operations is provided as a supplement to and should be read in conjunction with the consolidated financial statements and related notes included elsewhere in this Quarterly Report on Form 10-Q to enhance the understanding of our results of operations, financial condition and cash flows.

EXECUTIVE SUMMARY

Overview

United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United").

This Quarterly Report on Form 10-Q is a combined report of UAL and United, including their respective consolidated financial statements. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United's operating revenues and operating expenses comprise nearly 100% of UAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures, and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words "we," "our," "us," and the "Company" in this report for disclosures that relate to all of UAL and United.

Our shared purpose is "Connecting People. Uniting the World." We have the most comprehensive route network among North American carriers, including U.S. mainland hubs in Chicago, Denver, Houston, Los Angeles, New York/Newark, San Francisco and Washington, D.C. The Company transports people and cargo through its mainline operations, which utilize jet aircraft with at least 126 seats, and regional operations, which utilize smaller aircraft that are operated under contract by United Express carriers. The Company serves virtually every major market around the world, either directly or through participation in Star Alliance®, the world's largest airline alliance.

Our current expectations described below are forward-looking statements and our actual results and timing may vary materially based on various factors that include, but are not limited to, those discussed below under "Economic and Market Factors", "Governmental Actions" and "Forward-Looking Information", in Part I, Item 1A. Risk Factors, in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 (the "2023 Form 10-K"). The results presented in this report are not necessarily indicative of future operating results.

Economic and Market Factors

The airline industry is highly competitive, marked by significant competition with respect to routes, fares, schedules (both timing and frequency), services, products, customer service and frequent flyer programs. We, like other companies in our industry, have been subject to these and other industry-specific competitive dynamics. In addition, our operations, supply chain, partners and suppliers have been subject to various global macroeconomic factors. We expect to continue to remain vulnerable to a number of industry-specific and global macroeconomic factors that may cause our actual results of operations to differ from our historical results of operations or current expectations. The economic and market factors and trends that we currently believe are or will be most impactful to our results of operations and financial condition include the following: the execution risks associated with our United Next plan, especially relating to the growth in the scale of our operations as a result of the plan; the impact on the Company of significant operational challenges by third parties on which we rely; rising inflationary pressures; labor market and supply chain constraints and related costs affecting us and our partners; volatile fuel prices; aircraft delivery delays; increasing maintenance expenses; high interest rates; and changes in general economic conditions in the markets in which the Company operates, including an economic downturn leading to a decrease in demand for air travel or fluctuations in foreign currency exchange rates that may impact international travel demand. We continue to monitor the potential favorable or unfavorable impacts of these and other factors on our business, operations, financial condition, future results of operations, liquidity and financial flexibility, which are dependent on future developments, including as a result of those factors discussed in Part I, Item 1A. Risk Factors, of the 2023 Form 10-K. Our future results of operations may be subject to volatility and our growth plans may be delayed, particularly in the short term, due to the impact of the above factors and trends.

Governmental Actions

We operate in complex, highly regulated environments in the U.S., the European Union, the United Kingdom and other regions around the world. Compliance with laws, regulations, administrative practices and other restrictions or legal requirements in the countries in which we do business is onerous and expensive. In addition, changes to existing legal requirements or the

23

implementation of new legal requirements and any failure to comply with such legal requirements could negatively impact our business, operations, financial condition, future results of operations, liquidity and financial flexibility by increasing the Company's costs, limiting the Company's ability to offer a product, service or feature to customers, impacting customer demand for the Company's products and services and requiring changes to the Company's supply chain and its business. Legal requirements that we currently believe are or will be most impactful to our results of operations and financial condition include the following: increased oversight by the Federal Aviation Administration ("FAA") of the Company’s operations in connection with its evaluation of the Company; the closure of our flying airspace and termination of other operations due to regional conflicts, including the suspension of our overflying in Russian airspace as a result of the Russia-Ukraine military conflict and to Tel Aviv as a result of the Israeli-Hamas military conflict, as well as any escalation of the broader economic consequences of these conflicts beyond their current scope; delays in aircraft certification (especially relating to the 737 MAX 10 aircraft); increased FAA oversight of the aircraft production process; and any legal requirement that would result in a reshaping of the benefits that we provide to our consumers through the co-branded credit cards issued by our partner. Changes in existing applicable legal requirements or new applicable legal requirements as well as the related interpretations and enforcement practices regarding them, create uncertainty about how such laws and regulations will be understood and applied. As a result, the impact of changing and new legal requirements generally cannot be reasonably predicted and those requirements may ultimately require extensive system and operational changes, be difficult to implement, increase our operating costs and require significant capital expenditures.

RESULTS OF OPERATIONS

The following discussion provides an analysis of our results of operations and reasons for material changes therein for the three months ended March 31, 2024, as compared to the corresponding period in 2023.

First Quarter 2024 Compared to First Quarter 2023

The Company recorded a net loss of $124 million for the first quarter of 2024 as compared to a net loss of $194 million for the first quarter of 2023. Significant components of the Company's operating results for the three months ended March 31 are as follows (in millions, except percentage changes):

	2024		2023		Increase (Decrease)		% Change
Operating revenue	$	12,539	$	11,429	$	1,110	9.7
Operating expense	12,440		11,472		968		8.4
Operating income (loss)	99		(43)		142		NM
Nonoperating expense, net	(263)		(213)		50		23.5
Loss before income taxes	(164)		(256)		(92)		(35.9)
Income tax benefit	(40)		(62)		(22)		(35.5)
Net loss	$	(124)	$	(194)	$	(70)	(36.1)

24

Certain consolidated statistical information for the Company's operations for the three months ended March 31 is as follows:

	2024			2023			Increase (Decrease)		% Change
Passengers (thousands) (a)	39,325			36,822			2,503		6.8
Revenue passenger miles ("RPMs" or "traffic") (millions) (b)	57,427			52,532			4,895		9.3
Available seat miles ("ASMs" or "capacity") (millions) (c)	71,668			65,720			5,948		9.1
Passenger load factor (d)	80.1		%	79.9		%	0.2 pts.		N/A
Passenger revenue per available seat mile ("PRASM") (cents)	15.79			15.63			0.16		1.0
Total revenue per ASM ("TRASM") (cents)	17.50			17.39			0.11		0.6
Average yield per revenue passenger mile ("Yield") (cents) (e)	19.70			19.56			0.14		0.7
Cargo revenue ton miles ("CTM") (millions) (f)	852			731			121		16.6
Cost per ASM ("CASM") (cents)	17.36			17.46			(0.10)		(0.6)
Average price per gallon of fuel, including fuel taxes	$	2.88		$	3.33		$	(0.45)	(13.5)
Fuel gallons consumed (millions)	1,025			952			73		7.7
Employee headcount, as of March 31	104,500			96,300			8,200		8.5
(a) The number of revenue passengers measured by each flight segment flown.
(b) The number of scheduled miles flown by revenue passengers.
(c) The number of seats available for passengers multiplied by the number of scheduled miles those seats are flown.
(d) Revenue passenger miles divided by available seat miles.
(e) The average passenger revenue received for each revenue passenger mile flown.
(f) The number of cargo revenue tons transported multiplied by the number of miles flown.

Operating Revenue. The table below shows year-over-year comparisons by type of operating revenue for the three months ended March 31 (in millions, except for percentage changes):

	2024		2023		Increase (Decrease)		% Change
Passenger	$	11,313	$	10,274	$	1,039	10.1
Cargo	391		398		(7)		(1.8)
Other	835		757		78		10.3
Total operating revenue	$	12,539	$	11,429	$	1,110	9.7

The table below presents selected first quarter passenger revenue and operating data, broken out by geographic region, expressed as year-over-year changes:

	Increase (decrease) from 2023:
	Domestic			Atlantic			Pacific			Latin			Total
Passenger revenue (in millions)	$	431		$	66		$	426		$	116		$	1,039
Passenger revenue	6.6		%	4.1		%	44.3		%	9.6		%	10.1		%
Average fare per passenger	2.0		%	6.8		%	(2.8)		%	(8.1)		%	3.1		%
Yield	2.6		%	9.0		%	(3.5)		%	(10.0)		%	0.7		%
PRASM	6.1		%	10.7		%	(12.9)		%	(12.7)		%	1.0		%
Passengers	4.6		%	(2.5)		%	48.4		%	19.3		%	6.8		%
RPMs	3.9		%	(4.5)		%	49.5		%	21.7		%	9.3		%
ASMs	0.5		%	(5.9)		%	65.8		%	25.5		%	9.1		%
Passenger load factor (points)	2.8			1.1			(7.6)			(2.7)			0.2

Passenger revenue increased $1.0 billion, or 10.1%, in the first quarter of 2024 as compared to the year-ago period, primarily due to a 9.1% increase in capacity and a 0.7% increase in Yield.

Other operating revenue increased $78 million, or 10.3%, in the first quarter of 2024 as compared to the year-ago period, primarily due to an increase in mileage revenue from non-airline partners, including credit card spending with our co-branded credit card partner, JPMorgan Chase Bank, N.A., as well as increases in the purchases of United Club memberships, visitor volume and purchases of one-time United Club passes.

25

Operating Expenses. The table below includes data related to the Company's operating expenses for the three months ended March 31 (in millions, except for percentage changes):

	2024		2023		Increase (Decrease)		% Change (a)
Salaries and related costs	$	3,932	$	3,322	$	610	18.4
Aircraft fuel	2,954		3,174		(220)		(6.9)
Landing fees and other rent	804		717		87		12.1
Aircraft maintenance materials and outside repairs	773		702		71		10.1
Depreciation and amortization	708		655		53		8.1
Regional capacity purchase	585		615		(30)		(4.9)
Distribution expenses	480		403		77		19.1
Aircraft rent	43		56		(13)		(23.2)
Special charges	13		14		(1)		NM
Other	2,148		1,814		334		18.4
Total operating expenses	$	12,440	$	11,472	$	968	8.4
(a) NM - Greater than 100% change or otherwise not meaningful.

Salaries and related costs increased $610 million, or 18.4%, in the first quarter of 2024 as compared to the year-ago period, primarily due to annual wage rate increases across certain employee groups and an 8.5% increase in headcount largely due to increased flight activity.

Aircraft fuel expense decreased by $220 million, or 6.9%, in the first quarter of 2024 as compared to the year-ago period, due to a lower average price per gallon of fuel, partially offset by increased consumption from higher flight activity. The table below presents the significant changes in aircraft fuel cost per gallon in the three months ended March 31, 2024 as compared to the year-ago period (in millions, except percentage change and per gallon data):

	2024		2023		Increase (Decrease)		% Change
Fuel expense	$	2,954	$	3,174	$	(220)	(6.9)	%
Fuel consumption (gallons)	1,025		952		73		7.7	%
Average price per gallon	$	2.88	$	3.33	$	(0.45)	(13.5)	%

Landing fees and other rent increased $87 million, or 12.1%, in the first quarter of 2024 as compared to the year-ago period, primarily due to rate increases at various airports, terminal expansions and other increases in the number of airport gates and higher landed weight volume due to increased flight activity.

Aircraft maintenance materials and outside repairs increased $71 million, or 10.1%, in the first quarter of 2024 as compared to the year-ago period, primarily due to an increased volume of engine overhauls.

Depreciation expense increased $53 million, or 8.1%, in the first quarter of 2024 as compared to the year-ago period, primarily due to induction of new aircraft and related spare parts and higher obsolescence due to higher inventory levels for expendable parts.

Distribution expenses increased $77 million, or 19.1%, in the first quarter of 2024 as compared to the year-ago period, primarily due to higher credit card fees driven by an increase in passenger revenue and $56 million of commissions that were recorded as contra-revenue in 2023.

Other operating expenses increased $334 million, or 18.4%, in the first quarter of 2024 as compared to the year ago period, primarily as a direct result of the increase in flight activity and the impacts of inflationary pressures. Other operating expenses include expenditures related to information technology projects and services, food and beverage offerings, passenger services, personnel-related costs and ground handling.

26

Nonoperating Income (Expense). The table below shows year-over-year comparisons of the Company's nonoperating income (expense) for the three months ended March 31 (in millions, except for percentage changes):

	2024		2023		Increase (Decrease)		% Change
Interest expense	$	(454)	$	(486)	$	(32)	(6.6)
Interest income	177		170		7		4.1
Interest capitalized	61		38		23		60.5
Unrealized gains (losses) on investments, net	(37)		24		(61)		NM
Miscellaneous, net	(10)		41		(51)		NM
Total	$	(263)	$	(213)	$	50	23.5

Interest expense decreased $32 million, or 6.6%, in the first quarter of 2024 as compared to the year-ago period, primarily due to declining debt balances and lower interest rates on refinanced debt.

Unrealized losses on investments, net, was $37 million in the first quarter of 2024 as compared to $24 million in unrealized gains in the year-ago period, primarily due to the change in the market value of the Company's investments in equity securities. See Note 6 to the financial statements included in Part I, Item 1 of this report for information related to these equity investments.

Miscellaneous, net changed by $51 million in the first quarter of 2024 as compared to the year-ago period, primarily due to debt extinguishment and modification fees related to the refinancing of the Company's 2021 term loans, higher foreign exchange losses and a decrease in the benefit from the Company's net periodic benefit cost of its pensions and postretirement benefit plans.

Income Taxes. See Note 4 to the financial statements included in Part I, Item 1 of this report for information related to income taxes.

LIQUIDITY AND CAPITAL RESOURCES

Current Liquidity

As of March 31, 2024, the Company had $14.0 billion in unrestricted cash, cash equivalents and short-term investments, as compared to $14.4 billion at December 31, 2023. We believe that our existing cash, cash equivalents and short-term investments, together with cash generated from operations, will be sufficient to satisfy our anticipated liquidity needs for the next twelve months, and we expect to meet our long-term liquidity needs with our anticipated access to the capital markets and projected cash from operations. We regularly assess our anticipated working capital needs, debt and leverage levels, debt maturities, capital expenditure requirements (including in connection with our capital commitments for our firm order aircraft) and future investments or acquisitions in order to maximize shareholder return, efficiently finance our ongoing operations and maintain flexibility for future strategic transactions. We also regularly evaluate our liquidity and capital structure to ensure financial risks, liquidity access and cost of capital are efficiently managed.

27

As of March 31, 2024, the Company has a $2.87 billion revolving credit facility (the "Revolving Credit Facility"), of which $2.7 billion expires February 15, 2029 and $165 million expires April 21, 2025. The Revolving Credit Facility is secured by certain route authorities and airport slots and gates. No borrowings were outstanding under the Revolving Credit Facility as of March 31, 2024. On April 16, 2024, the Company increased the revolving loan commitments of the Extending Lenders (as defined in the Revolving Credit Facility) by $100 million. The revolving loan commitments of the Extending Lenders now equal $2.8 billion and the revolving loan commitments of the 2024 Non-Extending Lenders (as defined in the Revolving Credit Facility) remain $165 million.

We have a significant amount of fixed obligations, including debt, leases of aircraft, airport and other facilities, and pension funding obligations. As of March 31, 2024, the Company had approximately $34.8 billion of debt, finance lease, operating lease and other financial liabilities, including $4.7 billion that will become due in the next 12 months. In addition, we have substantial noncancelable commitments for capital expenditures, including the acquisition of certain new aircraft and related spare engines. Our debt agreements contain customary terms and conditions as well as various affirmative, negative and financial covenants that, among other things, restrict the ability of the Company and its subsidiaries to incur additional indebtedness and pay dividends or repurchase stock. As of March 31, 2024, UAL and United were in compliance with their respective debt covenants. As of March 31, 2024, a substantial portion of the Company's assets, principally aircraft and certain related assets, its loyalty program, certain route authorities and airport slots and gates, was pledged under various loan and other agreements. See Note 8 to the financial statements included in Part I, Item 1 of this report for additional information on aircraft financing and other debt instruments.

The Company has backstop financing commitments available from certain of its aircraft manufacturers for a limited number of its future aircraft deliveries, subject to certain customary conditions. See Note 7 to the financial statements included in Part I, Item 1 of this report for additional information on commitments.

As of March 31, 2024, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") as presented in the table below:

		Contractual Aircraft Deliveries			Expected Aircraft Deliveries (b)
Aircraft Type	Number of Firm  Commitments (a)	Last Nine Months of 2024	2025	After 2025	Last Nine Months of 2024	2025	After 2025
787	150	8	18	124	5	12	133
737 MAX 8	36	36	—	—	19	17	—
737 MAX 9	144	34	40	70	10	44	90
737 MAX 10	167	—	—	167	—	—	167
A321neo	123	23	38	62	22	24	77
A321XLR	50	—	8	42	—	1	49
A350	45	—	—	45	—	—	45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments to contractual delivery schedules as communicated by Boeing and Airbus or estimated by United. However, aircraft deliveries are subject to a number of variables, as further described in Part I, Item 1A. Risk Factors of the 2023 Form 10-K, and we cannot guarantee delivery of any particular aircraft at any specific time notwithstanding firm purchase commitments.

The aircraft listed in the table above are scheduled for delivery through 2033. The amount and timing of the Company's future capital commitments could change to the extent that: (i) the Company and the aircraft manufacturers, with whom the Company has existing orders for new aircraft, agree to modify the contracts governing those orders; (ii) rights are exercised pursuant to the relevant agreements to cancel deliveries or modify the timing of deliveries; or (iii) the aircraft manufacturers are unable to deliver in accordance with the terms of those orders.

On April 14, 2024, the Company entered into confidential arrangements with Boeing with respect to compensation for financial damages incurred in first quarter of 2024 due to the FAA grounding of the Boeing 737 MAX 9 aircraft, and a confidential agreement to accommodate certification delays for the Boeing 737 MAX 10 aircraft. The compensation provided by Boeing for the grounding damages and in connection with rescheduling deliveries is in the form of credit memos for use on future purchases from Boeing. The Company plans to account for these arrangements as a reduction to the cost basis of the previously-delivered Boeing 737 MAX 9 aircraft and future deliveries of the MAX 9 and MAX 10 aircraft, which is expected to reduce future depreciation expense associated with these aircraft.

The table below summarizes United's firm commitments as of March 31, 2024, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments. Aircraft commitments are based on contractual scheduled aircraft

28

deliveries without any adjustments communicated by Boeing and Airbus or estimated by United but reflecting the discounts related to future deliveries offered as part of the April 14, 2024 arrangements between United and Boeing.

(in billions)
Last nine months of 2024	$	7.1
2025	7.4
2026	5.5
2027	4.3
2028	6.4
After 2028	27.1
	$	57.8

In April 2024, the Company signed letters of intent to enter into future leasing arrangements with major aircraft leasing companies for 35 Airbus A321neo aircraft with expected deliveries in 2026 and 2027.

Sources and Uses of Cash

The following table summarizes our cash flows for the three months ended March 31 (in millions):

	2024		2023		Increase (Decrease)
Total cash provided by (used in):
Operating activities	$	2,847	$	3,142	$	(295)
Investing activities	1,441		(1,968)		(3,409)
Financing activities	(1,938)		(563)		1,375
Net increase in cash, cash equivalents and restricted cash	$	2,350	$	611	$	1,739

Operating Activities. Cash flows provided by operations decreased $0.3 billion in the first three months of 2024 as compared to the year-ago period, primarily due to changes in various working capital items, including a $0.7 billion increase in employee incentive payments in the first three months of 2024 as compared to the year-ago period, which was partially offset by a $0.3 billion increase in advance ticket sales associated with overall traffic growth in the first three months of 2024 as compared to the year-ago period.

Investing Activities. Cash flows used in investing activities decreased $3.4 billion in the first three months of 2024 as compared to the year-ago period, primarily due to a $3.3 billion decrease in the purchase of short-term and other investments and a $0.5 billion decrease in capital expenditures, which was partially offset by a $0.4 billion decrease in sales of short-term and other investments.

Financing Activities. Significant financing events in the three months ended March 31, 2024 were as follows:

Debt, Finance Lease and Other Financing Liability Principal Payments. During the three months ended March 31, 2024, the Company made payments for debt, finance leases, and other financing liabilities of $5.0 billion, including the $3.9 billion prepayment of its 2021 term loan.

Debt and Other Financing Liabilities Issuances. The Company borrowed the entire term loan commitment available under the new term loan facility in an amount equal to $2.5 billion.

See Note 8 to the financial statements included in Part I, Item 1 of this report for additional information on these financing activities.

Credit Ratings. As of the filing date of this report, UAL and United had the following corporate credit ratings:

	S&P	Moody's	Fitch
UAL	BB-	Ba2	BB-
United	BB-	*	BB-
*The credit agency does not issue corporate credit ratings for subsidiary entities.

29

These credit ratings are below investment grade levels; however, the Company has been able to secure financing with investment grade credit ratings for certain enhanced equipment trust certificates, term loans and secured bond financings. Downgrades from these rating levels, among other things, could restrict the availability, or increase the cost, of future financing for the Company as well as affect the fair market value of existing debt. A rating reflects only the view of a rating agency and is not a recommendation to buy, sell or hold securities. Ratings can be revised upward or downward at any time by a rating agency if such rating agency decides that circumstances warrant such a change.

Commitments, Contingencies and Liquidity Matters. As described in the 2023 Form 10-K, the Company's liquidity may be adversely impacted by a variety of factors, including, but not limited to, pension funding obligations, reserve requirements associated with credit card processing agreements, guarantees, commitments and contingencies.

See the 2023 Form 10-K and Notes 6, 7 and 8 to the financial statements contained in Part I, Item 1 of this report for additional information.

CRITICAL ACCOUNTING POLICIES

See "Critical Accounting Policies" in Part II, Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations in the 2023 Form 10-K.

FORWARD-LOOKING INFORMATION

This report contains certain "forward-looking statements," within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including in Part I, Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations and elsewhere, relating to, among other things, goals, plans and projections regarding the Company's financial position, results of operations, market position, capacity, fleet plan strategy, product development, ESG-related strategy initiatives and business strategy. Such forward-looking statements are based on historical performance and current expectations, estimates, forecasts and projections about the Company's future financial results, goals, plans, commitments, strategies and objectives and involve inherent risks, assumptions and uncertainties, known or unknown, including internal or external factors that could delay, divert or change any of them, that are difficult to predict, may be beyond the Company's control and could cause the Company's future financial results, goals, plans, commitments, strategies and objectives to differ materially from those expressed in, or implied by, the statements. Words such as "should," "could," "would," "will," "may," "expects," "plans," "intends," "anticipates," "indicates," "remains," "believes," "estimates," "projects," "forecast," "guidance," "outlook," "goals," "targets," "pledge," "confident," "optimistic," "dedicated," "positioned," and other words and terms of similar meaning and expression are intended to identify forward-looking statements, although not all forward-looking statements contain such terms. All statements, other than those that relate solely to historical facts, are forward-looking statements.

Additionally, forward-looking statements include conditional statements and statements that identify uncertainties or trends, discuss the possible future effects of known trends or uncertainties, or that indicate that the future effects of known trends or uncertainties cannot be predicted, guaranteed or assured. All forward-looking statements in this report are based upon information available to us on the date of this report. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise, except as required by applicable law or regulation.

Our actual results could differ materially from these forward-looking statements due to numerous factors including, without limitation, the following: execution risks associated with our strategic operating plan; changes in our fleet and network strategy or other factors outside our control resulting in less economic aircraft orders, costs related to modification or termination of aircraft orders or entry into less favorable aircraft orders, as well as any inability to accept or integrate new aircraft into our fleet as planned, including as a result of any mandatory groundings of aircraft; any failure to effectively manage, and receive anticipated benefits and returns from, acquisitions, divestitures, investments, joint ventures and other portfolio actions, as well as related costs or other issues, or related exposures to unknown liabilities or other issues or underperformance as compared to our expectations; adverse publicity, harm to our brand, reduced travel demand, potential tort liability and operational restrictions as a result of an accident, catastrophe or incident involving us, our regional carriers, our codeshare partners or another airline; the highly competitive nature of the global airline industry and susceptibility of the industry to price discounting and changes in capacity, including as a result of alliances, joint business arrangements or other consolidations; our reliance on a limited number of suppliers to source a majority of our aircraft, engines and certain parts, and the impact of any failure to obtain timely deliveries, additional equipment or support from any of these suppliers; disruptions to our regional network and United Express flights provided by third-party regional carriers; unfavorable economic and political conditions in the United States and globally; reliance on third-party service providers and the impact of any significant failure of these parties to perform as expected, or interruptions in our relationships with these providers or their provision of services; extended interruptions or disruptions in service at major airports where we operate and space, facility and infrastructure constraints at our hubs or other

30

airports; geopolitical conflict, terrorist attacks or security events (including the suspension of our overflying in Russian airspace as a result of the Russia-Ukraine military conflict and and to Tel Aviv as a result of the Israeli-Hamas military conflict, as well as any escalation of the broader economic consequences of these conflicts beyond their current scope); any damage to our reputation or brand image; our reliance on technology and automated systems to operate our business and the impact of any significant failure or disruption of, or failure to effectively integrate and implement, these technologies or systems; increasing privacy, data security and cybersecurity obligations or a significant data breach; increased use of social media platforms by us, our employees and others; the impacts of union disputes, employee strikes or slowdowns, and other labor-related disruptions or regulatory compliance costs on our operations or financial performance; any failure to attract, train or retain skilled personnel, including our senior management team or other key employees; the monetary and operational costs of compliance with extensive government regulation of the airline industry; current or future litigation and regulatory actions, or failure to comply with the terms of any settlement, order or agreement relating to these actions; costs, liabilities and risks associated with environmental regulation and climate change, and any failure to achieve or demonstrate progress towards our climate goals; high and/or volatile fuel prices or significant disruptions in the supply of aircraft fuel; the impacts of our significant amount of financial leverage from fixed obligations and the impacts of insufficient liquidity on our financial condition and business; failure to comply with financial and other covenants governing our debt, including our MileagePlus® financing agreements; limitations on our ability to use our net operating loss carryforwards and certain other tax attributes to offset future taxable income for U.S. federal income tax purposes; our failure to realize the full value of our intangible assets or our long-lived assets, causing us to record impairments; fluctuations in the price of our common stock; the impacts of seasonality and other factors associated with the airline industry; increases in insurance costs or inadequate insurance coverage and other risks and uncertainties set forth under Part I, Item 1A. Risk Factors, of the 2023 Form 10-K, and under "Economic and Market Factors" and "Governmental Actions" in Part I, Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations, of this report, as well as other risks and uncertainties set forth from time to time in the reports we file with the SEC.

The foregoing list sets forth many, but not all, of the factors that could impact our ability to achieve results described in any forward-looking statements. Investors should understand that it is not possible to predict or identify all such factors and should not consider this list to be a complete statement of all potential risks and uncertainties. It is routine for our internal projections and expectations to change as the year or each quarter in the year progresses, and therefore it should be clearly understood that the internal projections, beliefs and assumptions upon which we base our expectations may change. For instance, we regularly monitor future demand and booking trends and adjust capacity, as needed. As such, our actual flown capacity may differ materially from currently published flight schedules or current estimations.

31

ITEM 3.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

There have been no material changes in market risk from the information provided in Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, in our 2023 Form 10-K.

ITEM 4.     CONTROLS AND PROCEDURES.

Evaluation of Disclosure Control and Procedures

UAL and United each maintains controls and procedures that are designed to ensure that information required to be disclosed in the reports filed or submitted by UAL and United to the SEC is recorded, processed, summarized and reported, within the time periods specified by the SEC's rules and forms, and is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. The management of UAL and United, including the Chief Executive Officer and Chief Financial Officer, performed an evaluation to conclude with reasonable assurance that UAL's and United's disclosure controls and procedures were designed and operating effectively to report the information each company is required to disclose in the reports it files with the SEC on a timely basis. Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer of UAL and United have concluded that as of March 31, 2024, disclosure controls and procedures were effective.

Changes in Internal Control over Financial Reporting during the Quarter Ended March 31, 2024

During the three months ended March 31, 2024, there were no changes in UAL's or United's internal control over financial reporting that materially affected, or are reasonably likely to materially affect, their internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended (the "Exchange Act")).

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

See Part I, Item 3, Legal Proceedings, of the 2023 Form 10-K for a description of legal proceedings.

ITEM 1A. RISK FACTORS

See Part I, Item 1A. Risk Factors of the 2023 Form 10-K for a detailed discussion of the risk factors affecting UAL and United.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES, USE OF PROCEEDS, AND ISSUER PURCHASES OF EQUITY SECURITIES

(a) None

(b) None

(c) None

ITEM 5. OTHER INFORMATION

(a) On April 14, 2024, United Airlines, Inc. entered into a confidential agreement with Boeing to accommodate certification delays for the Boeing 737 MAX 10 aircraft (the "Boeing 737 Max 10 Agreement"). The compensation provided by Boeing in connection with rescheduling deliveries is in the form of credit memos for use on future purchases from Boeing. The Company plans to account for these arrangements as a reduction to the cost basis of future deliveries of Boeing 737 MAX 9 and Boeing 737 MAX 10 aircraft, which is expected to reduce future depreciation expense associated with these aircraft. United's firm commitments to purchase aircraft, including from Boeing, as of March 31, 2024, adjusted for the discounts related to future deliveries offered as part of the Boeing 737 Max 10 Agreement and other settlement arrangements with Boeing, are set forth in Note 7 to the financial statements included in Part I, Item 1 of this report.

(b) None.

(c) During the three months ended March 31, 2024, no director or "officer" (as defined in Rule 16a-1(f) under the Exchange Act) of the Company or United informed the Company or United of the adoption, modification or termination of a "Rule 10b5-1 trading arrangement" or a "non-Rule 10b5-1 trading arrangement," as each term is defined in Item 408(a) of Regulation S-K under the Exchange Act.

32

ITEM 6. EXHIBITS.

EXHIBIT INDEX

Exhibit No.	Registrant	Exhibit
31.1	UAL	Certification of the Principal Executive Officer of United Airlines Holdings, Inc. Pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)
31.2	UAL	Certification of the Principal Financial Officer of United Airlines Holdings, Inc. Pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)
31.3	United	Certification of the Principal Executive Officer of United Airlines, Inc. Pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)
31.4	United	Certification of the Principal Financial Officer of United Airlines, Inc. Pursuant to 15 U.S.C. 78m(a) or 78o(d) (Section 302 of the Sarbanes-Oxley Act of 2002)
32.1	UAL	Certification of the Chief Executive Officer and Chief Financial Officer of United Airlines Holdings, Inc. Pursuant to 18 U.S.C. 1350 (Section 906 of the Sarbanes-Oxley Act of 2002)
32.2	United	Certification of the Chief Executive Officer and Chief Financial Officer of United Airlines, Inc. Pursuant to 18 U.S.C. 1350 (Section 906 of the Sarbanes-Oxley Act of 2002)
101	UAL United	The following financial statements from the combined Quarterly Report of UAL and United on Form 10-Q for the quarter ended March 31, 2024, formatted in Inline XBRL: (i) Statements of Consolidated Operations, (ii) Statements of Consolidated Comprehensive Income, (iii) Consolidated Balance Sheets, (iv) Condensed Statements of Consolidated Cash Flows, (v) Statements of Consolidated Stockholders' Equity and (vi) Combined Notes to Condensed Consolidated Financial Statements, tagged as blocks of text and including detailed tags.
104	UAL United	Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

33

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		United Airlines Holdings, Inc.
		(Registrant)
Date:	April 17, 2024	By:	/s/ Brigitte Bokemeier
			Brigitte Bokemeier Vice President and Controller (Duly Authorized Officer and Principal Accounting Officer)
		United Airlines, Inc.
		(Registrant)
Date:	April 17, 2024	By:	/s/ Brigitte Bokemeier
			Brigitte Bokemeier Vice President and Controller (Duly Authorized Officer and Principal Accounting Officer)

34

EX-31.1

Exhibit 31.1

Certification of the Principal Executive Officer

Pursuant to 15 U.S.C. 78m(a) or 78o(d)

(Section 302 of the Sarbanes-Oxley Act of 2002)

I, J. Scott Kirby, certify that:

(1)    I have reviewed this quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines Holdings, Inc. (the "Company");

(2)    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

(3)    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

(4)    The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the Company's most recent fiscal quarter (the Company's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

(5)    The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

/s/ J. Scott Kirby

J. Scott Kirby

Chief Executive Officer

Date: April 17, 2024

EX-31.2

Exhibit 31.2

Certification of the Principal Financial Officer

Pursuant to 15 U.S.C. 78m(a) or 78o(d)

(Section 302 of the Sarbanes-Oxley Act of 2002)

I, Michael Leskinen, certify that:

(1)    I have reviewed this quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines Holdings, Inc. (the "Company");

(2)    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

(3)    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

(4)    The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the Company's most recent fiscal quarter (the Company's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

(5)    The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

/s/ Michael Leskinen

Michael Leskinen

Executive Vice President and Chief Financial Officer

Date: April 17, 2024

EX-31.3

Exhibit 31.3

Certification of the Principal Executive Officer

Pursuant to 15 U.S.C. 78m(a) or 78o(d)

(Section 302 of the Sarbanes-Oxley Act of 2002)

I, J. Scott Kirby, certify that:

(1)    I have reviewed this quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines, Inc. (the "Company");

(2)    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

(3)    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

(4)    The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the Company's most recent fiscal quarter (the Company's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

(5)    The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

/s/ J. Scott Kirby

J. Scott Kirby

Chief Executive Officer

Date: April 17, 2024

EX-31.4

Exhibit 31.4

Certification of the Principal Financial Officer

Pursuant to 15 U.S.C. 78m(a) or 78o(d)

(Section 302 of the Sarbanes-Oxley Act of 2002)

I, Michael Leskinen, certify that:

(1)    I have reviewed this quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines, Inc. (the "Company");

(2)    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

(3)    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Company as of, and for, the periods presented in this report;

(4)    The Company's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:

(a)    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)    Evaluated the effectiveness of the Company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    Disclosed in this report any change in the Company's internal control over financial reporting that occurred during the Company's most recent fiscal quarter (the Company's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting; and

(5)    The Company's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Company's auditors and the audit committee of the Company's board of directors (or persons performing the equivalent functions):

(a)    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Company's ability to record, process, summarize and report financial information; and

(b)    Any fraud, whether or not material, that involves management or other employees who have a significant role in the Company's internal control over financial reporting.

/s/ Michael Leskinen

Michael Leskinen

Executive Vice President and Chief Financial Officer

Date: April 17, 2024

EX-32.1

Exhibit 32.1

Certification of United Airlines Holdings, Inc.

Pursuant to 18 U.S.C. 1350

(Section 906 of the Sarbanes-Oxley Act of 2002)

Each undersigned officer certifies that to the best of his knowledge based on a review of the quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines Holdings, Inc. (the "Report"):

(1)    The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)    The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of United Airlines Holdings, Inc.

Date: April 17, 2024

/s/ J. Scott Kirby

J. Scott Kirby

Chief Executive Officer

/s/ Michael Leskinen

Michael Leskinen

Executive Vice President and Chief Financial Officer

EX-32.2

Exhibit 32.2

Certification of United Airlines, Inc.

Pursuant to 18 U.S.C. 1350

(Section 906 of the Sarbanes-Oxley Act of 2002)

Each undersigned officer certifies that to the best of his knowledge based on a review of the quarterly report on Form 10-Q for the quarterly period ended March 31, 2024 of United Airlines, Inc. (the "Report"):

(1)    The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2)    The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of United Airlines, Inc.

Date: April 17, 2024

/s/ J. Scott Kirby

J. Scott Kirby

Chief Executive Officer

/s/ Michael Leskinen

Michael Leskinen

Executive Vice President and Chief Financial Officer

XML

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	Apr. 11, 2024
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-06033
Entity Registrant Name	United Airlines Holdings, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-2675207
Entity Address, Address Line One	233 South Wacker Drive,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606
City Area Code	(872)
Local Phone Number	825-4000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		328,803,431
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000100517
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	UAL
Security Exchange Name	NASDAQ
Preferred Stock Purchase Rights
Entity Information [Line Items]
Title of 12(b) Security	Preferred Stock Purchase Rights
No Trading Symbol Flag	true
Security Exchange Name	NASDAQ
United Airlines, Inc.
Entity Information [Line Items]
Entity File Number	001-10323
Entity Registrant Name	United Airlines, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-2099724
Entity Address, Address Line One	233 South Wacker Drive,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606
City Area Code	(872)
Local Phone Number	825-4000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,000
Entity Central Index Key	0000319687

XML

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED) (UAH) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating revenue:
Total operating revenue	$ 12,539	$ 11,429
Operating expense:
Salaries and related costs	3,932	3,322
Aircraft fuel	2,954	3,174
Landing fees and other rent	804	717
Aircraft maintenance materials and outside repairs	773	702
Depreciation and amortization	708	655
Regional capacity purchase	585	615
Distribution expenses	480	403
Aircraft rent	43	56
Special charges	13	14
Other	2,148	1,814
Total operating expense	12,440	11,472
Operating income (loss)	99	(43)
Nonoperating income (expense):
Interest expense	(454)	(486)
Interest income	177	170
Interest capitalized	61	38
Unrealized gains (losses) on investments, net	(37)	24
Miscellaneous, net	(10)	41
Total nonoperating expense, net	(263)	(213)
Loss before income tax benefit	(164)	(256)
Income tax benefit	(40)	(62)
Net loss	$ (124)	$ (194)
Loss per share, basic (in dollars per share)	$ (0.38)	$ (0.59)
Loss per share, diluted (in dollars per share)	$ (0.38)	$ (0.59)
Passenger
Operating revenue:
Total operating revenue	$ 11,313	$ 10,274
Cargo
Operating revenue:
Total operating revenue	391	398
Other
Operating revenue:
Total operating revenue	$ 835	$ 757

XML

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED) (UAH) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (124)	$ (194)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(17)	(35)
Investments and other	(2)	21
Total other comprehensive loss, net of tax	(19)	(14)
Total comprehensive loss, net	$ (143)	$ (208)

XML

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UAH) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 8,401	$ 6,058
Short-term investments	5,591	8,330
Restricted cash	40	31
Receivables, less allowance for credit losses (2024 — $19; 2023 — $18)	2,259	1,898
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2024 — $721; 2023 — $689)	1,675	1,561
Prepaid expenses and other	730	609
Total current assets	18,696	18,487
Operating property and equipment:
Flight equipment	49,277	48,448
Other property and equipment	10,940	10,527
Purchase deposits for flight equipment	3,558	3,550
Total operating property and equipment	63,775	62,525
Less — Accumulated depreciation and amortization	(23,305)	(22,710)
Total operating property and equipment, net	40,470	39,815
Operating lease right-of-use assets	3,895	3,914
Other assets:
Goodwill	4,527	4,527
Intangibles, less accumulated amortization (2024 — $1,339; 2023 — $1,495)	2,717	2,725
Restricted cash	244	245
Investments in affiliates and other, less allowance for credit losses (2024 — $32; 2023 — $38)	1,353	1,391
Total other assets	8,841	8,888
Total assets	71,902	71,104
Current liabilities:
Accounts payable	4,344	3,835
Accrued salaries and benefits	2,128	2,940
Advance ticket sales	9,601	6,704
Frequent flyer deferred revenue	3,086	3,095
Current maturities of long-term debt	3,958	4,018
Current maturities of operating leases	557	576
Current maturities of finance leases	117	172
Current maturities of other financial liabilities	63	57
Other	910	806
Total current liabilities	24,764	22,203
Long-term debt	23,059	25,057
Long-term obligations under operating leases	4,517	4,503
Long-term obligations under finance leases	78	91
Other liabilities and deferred credits:
Frequent flyer deferred revenue	4,193	4,048
Pension liability	985	968
Postretirement benefit liability	625	637
Deferred income taxes	545	594
Other financial liabilities	2,495	2,265
Other	1,453	1,414
Total other liabilities and deferred credits	10,296	9,926
Commitments and contingencies
Stockholders' equity:
Preferred stock	0	0
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 328,803,086 and 328,018,739 shares at March 31, 2024 and December 31, 2023, respectively	4	4
Additional capital invested	8,973	8,992
Stock held in treasury, at cost	(3,372)	(3,441)
Retained earnings	3,664	3,831
Accumulated other comprehensive loss	(81)	(62)
Total stockholders' equity	9,188	9,324
Total liabilities and stockholders' equity	$ 71,902	$ 71,104

XML

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UAH) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Receivables, allowance for credit losses	$ 19	$ 18
Aircraft fuel, spare, parts and supplies, obsolescence allowance	721	689
Intangibles, accumulated amortization	1,339	1,495
Investments in affiliates and other, allowance for credit losses	$ 32	$ 38
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000,000,000	1,000,000,000
Common shares, outstanding (in shares)	328,803,086	328,018,739

XML

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UAH) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities:
Net cash provided by operating activities		$ 2,847	$ 3,142
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns		(1,366)	(1,843)
Purchases of short-term and other investments		(866)	(4,193)
Proceeds from sale of short-term and other investments		3,657	4,061
Proceeds from sale of property and equipment		20	1
Other, net		(4)	6
Net cash provided by (used in) investing activities		1,441	(1,968)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees		3,111	288
Payments of long-term debt, finance leases and other financing liabilities		(5,031)	(820)
Other, net		(18)	(31)
Net cash used in financing activities		(1,938)	(563)
Net increase in cash, cash equivalents and restricted cash		2,350	611
Cash, cash equivalents and restricted cash at beginning of the period		6,335	7,421
Cash, cash equivalents and restricted cash at end of the period	[1]	8,685	8,032
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other		0	200
Right-of-use assets acquired through operating leases		132	295
Lease modifications and lease conversions		14	23
Investment interests received in exchange for loans, goods and services		$ 18	$ 21

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash $8,685 $8,032 

XML

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UAH) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024		Dec. 31, 2023	Mar. 31, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 8,401		$ 6,058	$ 7,634
Restricted cash — Current	40		31	173
Restricted cash — Non-Current	244		245	225
Total cash, cash equivalents and restricted cash	$ 8,685	[1]	$ 6,335	$ 8,032	[1]	$ 7,421

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash $8,685 $8,032 

XML

STATEMENTS OF CONSOLIDATED STOCKHOLDERS' EQUITY (UNAUDITED) (UAH) - USD ($) $ in Millions	Total	Common Stock	Additional Capital Invested	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance beginning (in shares) at Dec. 31, 2022		326,900,000
Balance beginning at Dec. 31, 2022	$ 6,896	$ 4	$ 8,986	$ (3,534)	$ 1,265	$ 175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(194)				(194)
Other comprehensive loss	(14)					(14)
Stock-settled share-based compensation	11		11
Stock issued for share-based awards, net of shares withheld for tax (in shares)		1,100,000
Stock issued for share-based awards, net of shares withheld for tax	(31)		(71)	91	(51)
Balance ending (in shares) at Mar. 31, 2023		328,000,000.0
Balance ending at Mar. 31, 2023	$ 6,668	$ 4	8,926	(3,443)	1,020	161
Balance beginning (in shares) at Dec. 31, 2023	328,018,739	328,000,000.0
Balance beginning at Dec. 31, 2023	$ 9,324	$ 4	8,992	(3,441)	3,831	(62)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(124)				(124)
Other comprehensive loss	(19)					(19)
Stock-settled share-based compensation	25		25
Stock issued for share-based awards, net of shares withheld for tax (in shares)		800,000
Stock issued for share-based awards, net of shares withheld for tax	$ (18)		(44)	69	(43)
Balance ending (in shares) at Mar. 31, 2024	328,803,086	328,800,000
Balance ending at Mar. 31, 2024	$ 9,188	$ 4	$ 8,973	$ (3,372)	$ 3,664	$ (81)

XML

STATEMENTS OF CONSOLIDATED OPERATIONS (UNAUDITED) (UA) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating revenue:
Total operating revenue	$ 12,539	$ 11,429
Operating expense:
Salaries and related costs	3,932	3,322
Aircraft fuel	2,954	3,174
Landing fees and other rent	804	717
Aircraft maintenance materials and outside repairs	773	702
Depreciation and amortization	708	655
Regional capacity purchase	585	615
Distribution expenses	480	403
Aircraft rent	43	56
Special charges	13	14
Other	2,148	1,814
Total operating expense	12,440	11,472
Operating income (loss)	99	(43)
Nonoperating income (expense):
Interest expense	(454)	(486)
Interest income	177	170
Interest capitalized	61	38
Unrealized gains (losses) on investments, net	(37)	24
Miscellaneous, net	(10)	41
Total nonoperating expense, net	(263)	(213)
Loss before income tax benefit	(164)	(256)
Income tax benefit	(40)	(62)
Net loss	(124)	(194)
Passenger
Operating revenue:
Total operating revenue	11,313	10,274
Cargo
Operating revenue:
Total operating revenue	391	398
Other
Operating revenue:
Total operating revenue	835	757
United Airlines, Inc.
Operating revenue:
Total operating revenue	12,539	11,429
Operating expense:
Salaries and related costs	3,932	3,322
Aircraft fuel	2,954	3,174
Landing fees and other rent	804	717
Aircraft maintenance materials and outside repairs	773	702
Depreciation and amortization	708	655
Regional capacity purchase	585	615
Distribution expenses	480	403
Aircraft rent	43	56
Special charges	13	14
Other	2,148	1,814
Total operating expense	12,440	11,472
Operating income (loss)	99	(43)
Nonoperating income (expense):
Interest expense	(454)	(486)
Interest income	177	170
Interest capitalized	61	38
Unrealized gains (losses) on investments, net	(37)	24
Miscellaneous, net	(10)	41
Total nonoperating expense, net	(263)	(213)
Loss before income tax benefit	(164)	(256)
Income tax benefit	(40)	(62)
Net loss	(124)	(194)
United Airlines, Inc. | Passenger
Operating revenue:
Total operating revenue	11,313	10,274
United Airlines, Inc. | Cargo
Operating revenue:
Total operating revenue	391	398
United Airlines, Inc. | Other
Operating revenue:
Total operating revenue	$ 835	$ 757

XML

STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (LOSS) (UNAUDITED) (UA) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net loss	$ (124)	$ (194)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(17)	(35)
Investments and other	(2)	21
Total other comprehensive loss, net of tax	(19)	(14)
Total comprehensive loss, net	(143)	(208)
United Airlines, Inc.
Net loss	(124)	(194)
Other comprehensive income (loss), net of tax:
Employee benefit plans	(17)	(35)
Investments and other	(2)	21
Total other comprehensive loss, net of tax	(19)	(14)
Total comprehensive loss, net	$ (143)	$ (208)

XML

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UA) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 8,401	$ 6,058
Short-term investments	5,591	8,330
Restricted cash	40	31
Receivables, less allowance for credit losses (2024 — $19; 2023 — $18)	2,259	1,898
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2024 — $721; 2023 — $689)	1,675	1,561
Prepaid expenses and other	730	609
Total current assets	18,696	18,487
Operating property and equipment:
Flight equipment	49,277	48,448
Other property and equipment	10,940	10,527
Purchase deposits for flight equipment	3,558	3,550
Total operating property and equipment	63,775	62,525
Less — Accumulated depreciation and amortization	(23,305)	(22,710)
Total operating property and equipment, net	40,470	39,815
Operating lease right-of-use assets	3,895	3,914
Other assets:
Goodwill	4,527	4,527
Intangibles, less accumulated amortization (2024 — $1,339; 2023 — $1,495)	2,717	2,725
Restricted cash	244	245
Investments in affiliates and other, less allowance for credit losses (2024 — $32; 2023 —$38)	1,353	1,391
Total other assets	8,841	8,888
Total assets	71,902	71,104
Current liabilities:
Accounts payable	4,344	3,835
Accrued salaries and benefits	2,128	2,940
Advance ticket sales	9,601	6,704
Frequent flyer deferred revenue	3,086	3,095
Current maturities of long-term debt	3,958	4,018
Current maturities of operating leases	557	576
Current maturities of finance leases	117	172
Current maturities of other financial liabilities	63	57
Other	910	806
Total current liabilities	24,764	22,203
Long-term debt	23,059	25,057
Long-term obligations under operating leases	4,517	4,503
Long-term obligations under finance leases	78	91
Other liabilities and deferred credits:
Frequent flyer deferred revenue	4,193	4,048
Pension liability	985	968
Postretirement benefit liability	625	637
Deferred income taxes	545	594
Other financial liabilities	2,495	2,265
Other	1,453	1,414
Total other liabilities and deferred credits	10,296	9,926
Commitments and contingencies
Stockholders' equity:
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at both March 31, 2024 and December 31, 2023	4	4
Additional capital invested	8,973	8,992
Retained earnings	3,664	3,831
Accumulated other comprehensive loss	(81)	(62)
Total stockholders' equity	9,188	9,324
Total liabilities and stockholders' equity	71,902	71,104
United Airlines, Inc.
Current assets:
Cash and cash equivalents	8,401	6,058
Short-term investments	5,591	8,330
Restricted cash	40	31
Receivables, less allowance for credit losses (2024 — $19; 2023 — $18)	2,259	1,898
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2024 — $721; 2023 — $689)	1,675	1,561
Prepaid expenses and other	730	609
Total current assets	18,696	18,487
Operating property and equipment:
Flight equipment	49,277	48,448
Other property and equipment	10,940	10,527
Purchase deposits for flight equipment	3,558	3,550
Total operating property and equipment	63,775	62,525
Less — Accumulated depreciation and amortization	(23,305)	(22,710)
Total operating property and equipment, net	40,470	39,815
Operating lease right-of-use assets	3,895	3,914
Other assets:
Goodwill	4,527	4,527
Intangibles, less accumulated amortization (2024 — $1,339; 2023 — $1,495)	2,717	2,725
Restricted cash	244	245
Investments in affiliates and other, less allowance for credit losses (2024 — $32; 2023 —$38)	1,353	1,391
Total other assets	8,841	8,888
Total assets	71,902	71,104
Current liabilities:
Accounts payable	4,344	3,835
Accrued salaries and benefits	2,128	2,940
Advance ticket sales	9,601	6,704
Frequent flyer deferred revenue	3,086	3,095
Current maturities of long-term debt	3,958	4,018
Current maturities of operating leases	557	576
Current maturities of finance leases	117	172
Current maturities of other financial liabilities	63	57
Other	912	808
Total current liabilities	24,766	22,205
Long-term debt	23,059	25,057
Long-term obligations under operating leases	4,517	4,503
Long-term obligations under finance leases	78	91
Other liabilities and deferred credits:
Frequent flyer deferred revenue	4,193	4,048
Pension liability	985	968
Postretirement benefit liability	625	637
Deferred income taxes	573	622
Other financial liabilities	2,495	2,265
Other	1,453	1,414
Total other liabilities and deferred credits	10,324	9,954
Commitments and contingencies
Stockholders' equity:
Common stock at par, $0.01 par value; authorized 1,000 shares; issued and outstanding 1,000 shares at both March 31, 2024 and December 31, 2023	0	0
Additional capital invested	507	482
Retained earnings	6,212	6,336
Accumulated other comprehensive loss	(81)	(62)
Payable to parent	2,520	2,538
Total stockholders' equity	9,158	9,294
Total liabilities and stockholders' equity	$ 71,902	$ 71,104

XML

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (UA) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Receivables, allowance for credit losses	$ 19	$ 18
Aircraft fuel, spare, parts and supplies, obsolescence allowance	721	689
Intangibles, accumulated amortization	1,339	1,495
Investments in affiliates and other, allowance for credit losses	$ 32	$ 38
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000,000,000	1,000,000,000
Common shares, outstanding (in shares)	328,803,086	328,018,739
United Airlines, Inc.
Receivables, allowance for credit losses	$ 19	$ 18
Aircraft fuel, spare, parts and supplies, obsolescence allowance	721	689
Intangibles, accumulated amortization	1,339	1,495
Investments in affiliates and other, allowance for credit losses	$ 32	$ 38
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, authorized (in shares)	1,000	1,000
Common shares, issued (in shares)	1,000	1,000
Common shares, outstanding (in shares)	1,000	1,000

XML

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UA) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities:
Net cash provided by operating activities		$ 2,847	$ 3,142
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns		(1,366)	(1,843)
Purchases of short-term and other investments		(866)	(4,193)
Proceeds from sale of short-term and other investments		3,657	4,061
Proceeds from sale of property and equipment		20	1
Other, net		(4)	6
Net cash provided by (used in) investing activities		1,441	(1,968)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees		3,111	288
Payments of long-term debt, finance leases and other financing liabilities		(5,031)	(820)
Net cash used in financing activities		(1,938)	(563)
Net increase in cash, cash equivalents and restricted cash		2,350	611
Cash, cash equivalents and restricted cash at beginning of the period		6,335	7,421
Cash, cash equivalents and restricted cash at end of the period	[1]	8,685	8,032
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other		0	200
Right-of-use assets acquired through operating leases		132	295
Lease modifications and lease conversions		14	23
Investment interests received in exchange for loans, goods and services		18	21
United Airlines, Inc.
Cash Flows from Operating Activities:
Net cash provided by operating activities		2,829	3,111
Cash Flows from Investing Activities:
Capital expenditures, net of flight equipment purchase deposit returns		(1,366)	(1,843)
Purchases of short-term and other investments		(866)	(4,193)
Proceeds from sale of short-term and other investments		3,657	4,061
Proceeds from sale of property and equipment		20	1
Other, net		(4)	6
Net cash provided by (used in) investing activities		1,441	(1,968)
Cash Flows from Financing Activities:
Proceeds from issuance of debt and other financing liabilities, net of discounts and fees		3,111	288
Payments of long-term debt, finance leases and other financing liabilities		(5,031)	(820)
Net cash used in financing activities		(1,920)	(532)
Net increase in cash, cash equivalents and restricted cash		2,350	611
Cash, cash equivalents and restricted cash at beginning of the period		6,335	7,421
Cash, cash equivalents and restricted cash at end of the period	[2]	8,685	8,032
Investing and Financing Activities Not Affecting Cash:
Property and equipment acquired through the issuance of debt, finance leases and other		0	200
Right-of-use assets acquired through operating leases		132	295
Lease modifications and lease conversions		14	23
Investment interests received in exchange for loans, goods and services		$ 18	$ 21

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash $8,685 $8,032 

[2] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash$8,685 $8,032 

XML

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS (UNAUDITED) (UA) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2024		Dec. 31, 2023	Mar. 31, 2023
Current assets:
Cash and cash equivalents	$ 8,401		$ 6,058	$ 7,634
Restricted cash — Current	40		31	173
Restricted cash — Non-Current	244		245	225
Total cash, cash equivalents and restricted cash	8,685	[1]	6,335	8,032	[1]
United Airlines, Inc.
Current assets:
Cash and cash equivalents	8,401		6,058	7,634
Restricted cash — Current	40		31	173
Restricted cash — Non-Current	244		245	225
Total cash, cash equivalents and restricted cash	$ 8,685	[2]	$ 6,335	$ 8,032	[2]

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash $8,685 $8,032 

[2] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheet: Current assets:Cash and cash equivalents$8,401 $7,634 Restricted cash — Current40 173 Restricted cash — Non-Current244 225 Total cash, cash equivalents and restricted cash$8,685 $8,032 

XML

STATEMENTS OF CONSOLIDATED STOCKHOLDER'S EQUITY (UNAUDITED) (UA) - USD ($) $ in Millions	Total	Additional Capital Invested	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	United Airlines, Inc.	United Airlines, Inc. Additional Capital Invested	United Airlines, Inc. Retained Earnings	United Airlines, Inc. Accumulated Other Comprehensive Income (Loss)	United Airlines, Inc. Payable to Parent
Balance beginning at Dec. 31, 2022	$ 6,896	$ 8,986	$ 1,265	$ 175	$ 6,865	$ 403	$ 3,716	$ 175	$ 2,571
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(194)		(194)		(194)		(194)
Other comprehensive loss	(14)			(14)	(14)			(14)
Stock-settled share-based compensation	11	11			11	11
Other					(32)				(32)
Balance ending at Mar. 31, 2023	6,668	8,926	1,020	161	6,636	414	3,522	161	2,539
Balance beginning at Dec. 31, 2023	9,324	8,992	3,831	(62)	9,294	482	6,336	(62)	2,538
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(124)		(124)		(124)		(124)
Other comprehensive loss	(19)			(19)	(19)			(19)
Stock-settled share-based compensation	25	25			25	25
Other					(18)				(18)
Balance ending at Mar. 31, 2024	$ 9,188	$ 8,973	$ 3,664	$ (81)	$ 9,158	$ 507	$ 6,212	$ (81)	$ 2,520

XML

Combined Notes to Condensed Consolidated Financial Statements (Unaudited)

3 Months Ended

Mar. 31, 2024

Unusual or Infrequent Items, or Both [Abstract]

COMBINED NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

COMBINED NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

United Airlines Holdings, Inc. (together with its consolidated subsidiaries, "UAL" or the "Company") is a holding company and its wholly-owned subsidiary is United Airlines, Inc. (together with its consolidated subsidiaries, "United"). This Quarterly Report on Form 10-Q is a combined report of UAL and United, including their respective consolidated financial statements. As UAL consolidates United for financial statement purposes, disclosures that relate to activities of United also apply to UAL, unless otherwise noted. United's operating revenues and operating expenses comprise nearly 100% of UAL's revenues and operating expenses. In addition, United comprises approximately the entire balance of UAL's assets, liabilities and operating cash flows. When appropriate, UAL and United are named specifically for their individual contractual obligations and related disclosures, and any significant differences between the operations and results of UAL and United are separately disclosed and explained. We sometimes use the words "we," "our," "us," and the "Company" in this report for disclosures that relate to all of UAL and United.

The UAL and United unaudited condensed consolidated financial statements shown here have been prepared as required by the U.S. Securities and Exchange Commission (the "SEC"). Some information and footnote disclosures normally included in financial statements that comply with accounting principles generally accepted in the United States ("GAAP") have been condensed or omitted as permitted by the SEC. The financial statements include all adjustments, including normal recurring adjustments and other adjustments, which are considered necessary for a fair presentation of the Company's financial position and results of operations for interim periods presented. The UAL and United financial statements should be read together with the information included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2023 (the "2023 Form 10-K"). The Company's quarterly financial data is subject to seasonal fluctuations. Historically its second and third quarter financial results have reflected higher travel demand, and were better than its first and fourth quarter financial results.

XML

Revenue

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

REVENUE

REVENUE

Revenue by Geography. The table below presents the Company's operating revenue by principal geographic region (as defined by the U.S. Department of Transportation) (in millions):

	Three Months Ended March 31,
	2024		2023
Domestic (U.S. and Canada)	$	7,673	$	7,167
Atlantic	1,833		1,832
Latin America	1,445		1,316
Pacific	1,588		1,114
Total	$	12,539	$	11,429

Advance Ticket Sales. The Company defers amounts related to future travel in its Advance ticket sales liability account. All tickets sold at any given point in time have travel dates through the next 12 months. The Company estimates the value of Advance ticket sales that will expire unused ("breakage") and recognizes revenue and any changes in estimates in proportion to the usage of the related tickets. To determine breakage, the Company uses its historical experience with expired tickets and certificates and other facts, such as recent aging trends, program changes and modifications that could affect the ultimate expiration patterns.

In the three months ended March 31, 2024 and 2023, the Company recognized approximately $4.0 billion and $3.5 billion, respectively, of passenger revenue for tickets that were included in Advance ticket sales at the beginning of those periods.

Ancillary Fees. The Company charges fees, separately from ticket sales, for certain ancillary services that are directly related to passengers' travel. This includes fees for baggage, premium seats, inflight amenities and other ticket-related fees. These ancillary fees are part of the travel performance obligation and, as such, are recognized as passenger revenue when the travel occurs. The Company recorded $984 million and $892 million of ancillary fees within passenger revenue in the three months ended March 31, 2024 and 2023, respectively.

Frequent Flyer Accounting. The table below presents a roll forward of Frequent flyer deferred revenue (in millions):

	Three Months Ended March 31,
	2024		2023
Total Frequent flyer deferred revenue - beginning balance	$	7,143	$	6,675
Total miles awarded	840		747
Travel miles redeemed	(665)		(531)
Non-travel miles redeemed	(39)		(31)
Total Frequent flyer deferred revenue - ending balance	$	7,279	$	6,860

In the three months ended March 31, 2024 and 2023, the Company recognized, in Other operating revenue, $714 million and $646 million, respectively, related to the marketing, advertising, non-travel miles redeemed (net of related costs) and other travel-related benefits of the mileage revenue associated with our various partner agreements including, but not limited to, our JPMorgan Chase Bank, N.A. MileagePlus co-brand agreement. The portion related to the MileagePlus miles awarded of the total amounts received from our various partner agreements is deferred and presented in the table above as an increase to the Frequent flyer deferred revenue. We determine the current portion of that account based on expected redemptions in the next 12 months.

XML

Loss Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

LOSS PER SHARE

LOSS PER SHARE

The following table shows the computation of basic and diluted earnings per share, the latter of which uses the treasury stock method to calculate the dilutive effect of UAL's potential common stock (in millions, except per share amounts):

	Three Months Ended March 31,
	2024		2023
Loss available to common stockholders	$	(124)	$	(194)
Weighted-average shares outstanding, basic and diluted	328.3		327.4
Loss per share, basic and diluted	$	(0.38)	$	(0.59)
Potentially dilutive securities (a)
Stock warrants (b)	3.5		1.5
Employee stock awards	0.5		0.7
(a) Weighted-average potentially dilutive securities outstanding excluded from the computation of diluted earnings per share because the securities would have had an antidilutive effect.
(b) Represent warrants issued to the U.S. Treasury Department ("Treasury") pursuant to the payroll support program, including extensions, and the loan program established under the Coronavirus Aid, Relief, and Economic Security Act. The Company issued to Treasury warrants to purchase up to approximately 10 million shares of UAL common stock at exercise prices ranging from $31.50 to $53.92 and expiration dates ranging from April 20, 2025 to June 10, 2026. All warrants were outstanding as of March 31, 2024.

XML

Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The table below presents the components of the Company's accumulated other comprehensive income (loss), net of tax ("AOCI") (in millions):

	Pension and Other Postretirement Liabilities			Investments and Other		Deferred Taxes (a)		Total
Balance at December 31, 2023	$	289		$	(4)	$	(347)	$	(62)
Changes in value	3			(2)		—		1
Amounts reclassified to earnings	(25)		(b)	—		5		(20)
Balance at March 31, 2024	$	267		$	(6)	$	(342)	$	(81)
Balance at December 31, 2022	$	626		$	(35)	$	(416)	$	175
Changes in value	(9)			27		(4)		14
Amounts reclassified to earnings	(35)		(b)	—		7		(28)
Balance at March 31, 2023	$	582		$	(8)	$	(413)	$	161

(a) Includes approximately $285 million of deferred income tax expense that will not be recognized in net income until the related pension and postretirement benefit obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations.

(b) This AOCI component is included in the computation of net periodic pension and other postretirement costs, specifically the following components: amortization of unrecognized (gain) loss, amortization of prior service credit and other (see Note 5 of this report for additional information).

XML

Income Taxes	3 Months Ended
	Mar. 31, 2024
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXESThe Company's effective tax rates for the three months ended March 31, 2024 and 2023 were 24.4% and 24.2%, respectively. The provision for income taxes is based on the estimated annual effective tax rate, which represents a blend of federal, state and foreign taxes and includes the impact of certain nondeductible items.

XML

Employee Benefit Plans

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS

Defined Benefit Pension and Other Postretirement Benefit Plans. The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):

	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of  Consolidated Operations
	2024		2023		2024		2023
Service cost	$	34	$	31	$	1	$	1	Salaries and related costs
Interest cost	57		55		10		10		Miscellaneous, net
Expected return on plan assets	(69)		(63)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss	5		2		(7)		(9)		Miscellaneous, net
Amortization of prior service credit	—		—		(23)		(28)		Miscellaneous, net
Total	$	27	$	25	$	(19)	$	(26)

XML

Fair value measurements, investments and notes receivable

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE

FAIR VALUE MEASUREMENTS, INVESTMENTS AND NOTES RECEIVABLE

The table below presents disclosures about the financial assets and liabilities measured at fair value on a recurring basis in UAL's financial statements (in millions):

	March 31, 2024								December 31, 2023
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	8,401	$	8,401	$	—	$	—	$	6,058	$	6,058	$	—	$	—
Restricted cash — current	40		40		—		—		31		31		—		—
Restricted cash — non-current	244		244		—		—		245		245		—		—
Short-term investments:
U.S. government and agency notes	5,518		—		5,518		—		8,257		—		8,257		—
Certificates of deposit placed through an account registry service ("CDARS")	73		—		73		—		73		—		73		—
Long-term investments:
Equity securities	116		116		—		—		177		177		—		—

Investments presented in the table above have the same fair value as their carrying value.

Restricted cash - current — Primarily includes amounts to be used for the payment of fees, principal and interest on senior secured notes and a secured term loan facility (the "MileagePlus Financing") secured by substantially all of the assets of Mileage Plus Holdings, LLC, a direct wholly-owned subsidiary of United.

Restricted cash - non-current — Primarily includes collateral associated with the MileagePlus Financing, collateral for letters of credit and collateral associated with facility leases and other insurance-related obligations.

Short-term investments — The short-term investments shown in the table above are classified as available-for-sale and have remaining maturities of 17 months or less.

Long-term investments: Equity securities — Represents equity and equity-linked securities (such as vested warrants) that make up United's investments in Azul Linhas Aéreas Brasileiras S.A., Archer Aviation Inc., Eve Holding, Inc. and Mesa Air Group, Inc.

Other fair value information. The table below presents the carrying values and estimated fair values of financial instruments not presented in the tables above (in millions). Carrying amounts include any related discounts, premiums and issuance costs:

	March 31, 2024										December 31, 2023
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	27,017	$	26,480	$	—	$	20,319	$	6,161	$	29,075	$	28,302	$	—	$	22,543	$	5,759

Fair value of the financial instruments included in the tables above was determined as follows:

Description	Fair Value Methodology
Cash and cash equivalents and Restricted cash (current and non-current)	The carrying amounts of these assets approximate fair value.
Short-term and Long-term investments	Fair value is based on (a) the trading prices of the investment or similar instruments or (b) broker quotes obtained by third-party valuation services.
Long-term debt	Fair values were based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities or assets.

Equity Method Investments. As of March 31, 2024, United holds investments, accounted for using the equity method, with a combined carrying value of approximately $230 million. Significant equity method investments are described below:

•Republic Airways Holdings Inc. United holds a 19% minority interest in Republic Airways Holdings Inc., which is the parent company of Republic Airways Inc. ("Republic"). Republic currently operates 66 regional aircraft under capacity purchase agreements ("CPAs") that have terms through 2035.

•CommuteAir LLC. United owns a 40% minority ownership stake in CommuteAir LLC. CommuteAir currently operates 53 regional aircraft under a CPA that has a term through 2026.

•United Airlines Ventures Sustainable Flight Fund (the "Fund"). During the first quarter of 2023, United launched, through its corporate venture capital arm, United Airlines Ventures, Ltd., an investment vehicle designed to support start-ups focused on decarbonizing air travel by accelerating the research, production and technologies associated with sustainable aviation fuel (SAF). As of March 31, 2024, the Company indirectly holds a 33% ownership interest in the Fund.

Other Investments. As of March 31, 2024, United has equity investments in Abra Group Limited, a multinational airline holding company, JetSuiteX, Inc., an independent air carrier doing business as JSX, as well as a number of companies with emerging technologies and sustainable solutions. None of these investments have readily determinable fair values. We account for these investments at cost less impairment, adjusted for observable price changes in orderly transactions for an identical or similar investment of the same issuer. As of March 31, 2024, the carrying value of these investments was $421 million.

Notes Receivable. As of March 31, 2024, the Company has $86 million of notes receivable, net of allowance for credit losses, the majority of which is from certain of its regional carriers. The current portions of the notes receivable are recorded in Receivables, less allowance for credit losses. The long-term portion of the notes receivable is recorded in Investments in affiliates and other, less allowance for credit losses on the Company's consolidated balance sheet.

XML

Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Commitments. As of March 31, 2024, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") as presented in the table below:

		Contractual Aircraft Deliveries			Expected Aircraft Deliveries (b)
Aircraft Type	Number of Firm  Commitments (a)	Last Nine Months of 2024	2025	After 2025	Last Nine Months of 2024	2025	After 2025
787	150	8	18	124	5	12	133
737 MAX 8	36	36	—	—	19	17	—
737 MAX 9	144	34	40	70	10	44	90
737 MAX 10	167	—	—	167	—	—	167
A321neo	123	23	38	62	22	24	77
A321XLR	50	—	8	42	—	1	49
A350	45	—	—	45	—	—	45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments to contractual delivery schedules as communicated by Boeing and Airbus or estimated by United. However, aircraft deliveries are subject to a number of variables, as further described in Part I, Item 1A. Risk Factors of the 2023 Form 10-K, and we cannot guarantee delivery of any particular aircraft at any specific time notwithstanding firm purchase commitments.

The aircraft listed in the table above are scheduled for delivery through 2033. The amount and timing of the Company's future capital commitments could change to the extent that: (i) the Company and the aircraft manufacturers, with whom the Company has existing orders for new aircraft, agree to modify the contracts governing those orders; (ii) rights are exercised pursuant to the relevant agreements to cancel deliveries or modify the timing of deliveries; or (iii) the aircraft manufacturers are unable to deliver in accordance with the terms of those orders.

On April 14, 2024, the Company entered into confidential arrangements with Boeing with respect to compensation for financial damages incurred in first quarter of 2024 due to the Federal Aviation Administration grounding of the Boeing 737 MAX 9 aircraft, and a confidential agreement to accommodate certification delays for the Boeing 737 MAX 10 aircraft. The compensation provided by Boeing for the grounding damages and in connection with rescheduling deliveries is in the form of credit memos for use on future purchases from Boeing. The Company plans to account for these arrangements as a reduction to the cost basis of the previously-delivered Boeing 737 MAX 9 aircraft and future deliveries of the MAX 9 and MAX 10 aircraft, which is expected to reduce future depreciation expense associated with these aircraft.

The table below summarizes United's firm commitments as of March 31, 2024, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments. Aircraft commitments are based on contractual scheduled aircraft deliveries without any adjustments communicated by Boeing and Airbus or estimated by United but reflecting the discounts related to future deliveries offered as part of the April 14, 2024 arrangements between United and Boeing.

(in billions)
Last nine months of 2024	$	7.1
2025	7.4
2026	5.5
2027	4.3
2028	6.4
After 2028	27.1
	$	57.8

In April 2024, the Company signed letters of intent to enter into future leasing arrangements with major aircraft leasing companies for 35 Airbus A321neo aircraft with expected deliveries in 2026 and 2027.

Regional CPAs. During the three months ended March 31, 2024, United amended several of its CPAs with certain of its regional carriers to increase the contractually agreed fees (carrier costs) paid to those carriers and to modify the terms for certain aircraft. Our future commitments under our CPAs are dependent on numerous variables, and are, therefore, difficult to predict. The most important of these variables is the number of scheduled block hours. Although we are not required to purchase a minimum number of block hours under certain of our CPAs, we have set forth below estimates of our future payments under the CPAs based on our assumptions. The actual amounts we pay to our regional operators under CPAs could differ materially from these estimates. United's estimates of its future payments under all of the CPAs do not include the portion of the underlying obligation for any aircraft leased to a regional carrier, or deemed to be leased from other regional carriers, and facility rent. For purposes of calculating these estimates, we have assumed (1) the number of block hours flown is based on our anticipated level of flight activity or at any contractual minimum utilization levels if applicable, whichever is higher, (2) that we will reduce the fleet as rapidly as contractually allowed under each CPA, (3) that aircraft utilization, stage length and load factors will remain constant, (4) that each carrier's operational performance will remain at recent historic levels and (5) an annual projected inflation rate. Based on these assumptions as of March 31, 2024, our estimated future payments through the end of the terms of our CPAs are presented in the table below:

(in billions)
Last nine months of 2024	$	1.9
2025	2.3
2026	2.2
2027	1.8
2028	1.3
After 2028	4.2
	$	13.7

Guarantees. As of March 31, 2024, United is the guarantor of approximately $1.9 billion in aggregate principal amount of tax-exempt special facilities revenue bonds and interest thereon. These bonds, issued by various airport municipalities, are payable solely from rentals paid under long-term agreements with the respective governing bodies. The leasing arrangements associated with these obligations are accounted for as operating leases recognized on the Company's consolidated balance sheet with the associated expense recorded on a straight-line basis over the expected lease term. All of these bonds are due between 2024 and 2041.

As of March 31, 2024, United is the guarantor of $73 million of aircraft mortgage debt issued by one of United's regional carriers. The aircraft mortgage debt is subject to similar increased cost provisions as described below for the Company's debt, and the Company would potentially be responsible for those costs under the guarantees.

Increased Cost Provisions. In United's financing transactions that include loans in which United is the borrower, United typically agrees to reimburse lenders for any reduced returns with respect to the loans due to any change in capital requirements and, in the case of loans with respect to which the interest rate is based on the Secured Overnight Financing Rate (SOFR), for certain other increased costs that the lenders incur in carrying these loans as a result of any change in law, subject, in most cases, to obligations of the lenders to take certain limited steps to mitigate the requirement for, or the amount of, such increased costs. At March 31, 2024, the Company had $10.1 billion of floating rate debt with remaining terms of up to approximately 12 years that are subject to these increased cost provisions. In several financing transactions involving loans or leases from non-U.S. entities, with remaining terms of up to approximately 12 years and an aggregate balance of $6.9 billion, the Company

bears the risk of any change in tax laws that would subject loan or lease payments thereunder to non-U.S. entities to withholding taxes, subject to customary exclusions.

Labor. As of March 31, 2024, the Company had approximately 104,500 employees, of whom approximately 83% were represented by various U.S. labor organizations.

On February 23, 2024, United and the International Association of Machinists and Aerospace Workers ratified agreements covering security guards in California and central load planners. The ratified agreements are effective through 2025.

On February 28, 2024, United and the International Brotherhood of Teamsters reached a tentative agreement for an extension to their labor contract. The agreement, if ratified, becomes amendable in December 2028.

XML

Debt

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

DEBT

DEBT

On February 15, 2024, the Company entered into an Amended and Restated Revolving Credit and Guaranty Agreement (the "Revolving Credit Facility") increasing the borrowing capacity by $1.115 billion, which may be drawn upon until February 15, 2029, in the case of any Revolving Loans (as defined in the Revolving Credit Facility) made by the Extending Lenders (as defined in the Revolving Credit Facility), and April 21, 2025, in the case of any Revolving Loans made by the 2024 Non-Extending Lenders (as defined in the Revolving Credit Facility). The revolving loan commitments of the Extending Lenders equal $2.7 billion and the revolving loan commitments of the 2024 Non-Extending Lenders equal $165 million. The Revolving Loans, if any, will bear interest at a variable rate equal to Term SOFR (as defined in the Revolving Credit Facility), generally subject to a floor, plus a credit adjustment spread described in the Revolving Credit Facility, or, at United's election, another rate based on certain market interest rates, also generally subject to a floor, in each case plus a variable margin ranging from 3.00% to 3.50%, in the case of Term SOFR loans, and 2.00% to 2.50%, in the case of loans at other market rates. As of March 31, 2024, we had $2.87 billion undrawn and available under the Revolving Credit Facility.

On April 16, 2024, the Company increased the revolving loan commitments of the Extending Lenders by $100 million. The revolving loan commitments of the Extending Lenders now equal $2.8 billion and the revolving loan commitments of the 2024 Non-Extending Lenders remain $165 million.

On February 22, 2024, the Company also entered into Amendment No. 2 to Term Loan Credit and Guaranty Agreement (as amended, the "Term Loan Facility" and, together with the Revolving Credit Facility, the "Loan Facilities") and (i) used available cash in an amount equal to $1.37 billion to partially prepay the term loans under the 2021 term loans and (ii) borrowed the entire term loan commitment available under the Term Loan Facility in an amount equal to $2.5 billion and used the proceeds of such terms loans (the "Term Loans") to prepay in full the remaining outstanding principal balance under the existing term loan facility. The Term Loans will bear interest at a variable rate equal to Term SOFR (subject to a floor of 0.0%); or, at United's election, another rate based on certain market interest rates (subject to a floor of 1.0%), in each case plus a margin of 2.75%, in the case of Term SOFR loans, and 1.75%, in the case of loans at other market rates. The remaining balance of the Term Loans will mature and be due and payable on February 22, 2031.

The table below presents the Company's contractual principal payments (not including $267 million of unamortized debt discount, premiums and debt issuance costs) as of March 31, 2024 under then-outstanding long-term debt agreements (in millions):

Last nine months of 2024	$	2,936
2025	3,459
2026	5,255
2027	2,486
2028	1,648
After 2028	11,500
	$	27,284

Our debt agreements contain customary terms and conditions as well as various affirmative, negative and financial covenants that, among other things, restrict the ability of the Company and its subsidiaries to incur additional indebtedness and pay dividends or repurchase stock. As of March 31, 2024, UAL and United were in compliance with their respective debt covenants.

XML

Special Charges

3 Months Ended

Mar. 31, 2024

Restructuring and Related Activities [Abstract]

SPECIAL CHARGES

SPECIAL CHARGES

For the three months ended March 31, operating and nonoperating special charges and unrealized (gains) losses on investments in the statements of consolidated operations consisted of the following (in millions):

	Three Months Ended March 31,
	2024		2023
Operating:
(Gains) losses on sale of assets and other special charges	$	13	$	14
Total operating special charges	13		14
Nonoperating:
Nonoperating unrealized (gains) losses on investments, net	37		(24)
Nonoperating debt extinguishment and modification fees	35		—
Total nonoperating special charges and unrealized (gains) losses on investments, net	72		(24)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net	85		(10)
Income tax benefit, net of valuation allowance	(11)		(3)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes	$	74	$	(13)

2024

(Gains) losses on sale of assets and other special charges. During the three months ended March 31, 2024, the Company incurred $13 million of charges primarily consisting of a settlement related to a certain pilot long term disability plan, accelerated depreciation on assets with shortened lives, and other losses on disposal of assets, which were partially offset by a gain from a favorable outcome related to a certain contract dispute as well as gains on sales of assets.

Nonoperating unrealized (gains) losses on investments, net. During the three months ended March 31, 2024, the Company recorded losses of $37 million primarily for the change in the market value of its investments in equity securities.

Nonoperating debt extinguishment and modification fees. During the three months ended March 31, 2024, the Company recorded $35 million of charges primarily related to the refinancing of its 2021 term loans.

2023

(Gains) losses on sale of assets and other special charges. During the three months ended March 31, 2023, the Company recorded $14 million of net charges primarily comprised of accelerated depreciation related to certain of the Company's assets that were retired early and other gains and losses on the sale of assets.

Nonoperating unrealized (gains) losses on investments, net. During the three months ended March 31, 2023, the Company recorded gains of $24 million primarily related to the change in the market value of its investments in equity securities

XML

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net loss	$ (124)	$ (194)

XML

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

XML

Revenue (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Operating Revenue by Geographic Region

The table below presents the Company's operating revenue by principal geographic region (as defined by the U.S. Department of Transportation) (in millions):

	Three Months Ended March 31,
	2024		2023
Domestic (U.S. and Canada)	$	7,673	$	7,167
Atlantic	1,833		1,832
Latin America	1,445		1,316
Pacific	1,588		1,114
Total	$	12,539	$	11,429

Schedule of Roll Forward of Frequent Flyer Deferred Revenue

The table below presents a roll forward of Frequent flyer deferred revenue (in millions):

	Three Months Ended March 31,
	2024		2023
Total Frequent flyer deferred revenue - beginning balance	$	7,143	$	6,675
Total miles awarded	840		747
Travel miles redeemed	(665)		(531)
Non-travel miles redeemed	(39)		(31)
Total Frequent flyer deferred revenue - ending balance	$	7,279	$	6,860

XML

Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings (Loss) Per Share

The following table shows the computation of basic and diluted earnings per share, the latter of which uses the treasury stock method to calculate the dilutive effect of UAL's potential common stock (in millions, except per share amounts):

	Three Months Ended March 31,
	2024		2023
Loss available to common stockholders	$	(124)	$	(194)
Weighted-average shares outstanding, basic and diluted	328.3		327.4
Loss per share, basic and diluted	$	(0.38)	$	(0.59)
Potentially dilutive securities (a)
Stock warrants (b)	3.5		1.5
Employee stock awards	0.5		0.7
(a) Weighted-average potentially dilutive securities outstanding excluded from the computation of diluted earnings per share because the securities would have had an antidilutive effect.
(b) Represent warrants issued to the U.S. Treasury Department ("Treasury") pursuant to the payroll support program, including extensions, and the loan program established under the Coronavirus Aid, Relief, and Economic Security Act. The Company issued to Treasury warrants to purchase up to approximately 10 million shares of UAL common stock at exercise prices ranging from $31.50 to $53.92 and expiration dates ranging from April 20, 2025 to June 10, 2026. All warrants were outstanding as of March 31, 2024.

XML

Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income (Loss), Net of Tax

The table below presents the components of the Company's accumulated other comprehensive income (loss), net of tax ("AOCI") (in millions):

	Pension and Other Postretirement Liabilities			Investments and Other		Deferred Taxes (a)		Total
Balance at December 31, 2023	$	289		$	(4)	$	(347)	$	(62)
Changes in value	3			(2)		—		1
Amounts reclassified to earnings	(25)		(b)	—		5		(20)
Balance at March 31, 2024	$	267		$	(6)	$	(342)	$	(81)
Balance at December 31, 2022	$	626		$	(35)	$	(416)	$	175
Changes in value	(9)			27		(4)		14
Amounts reclassified to earnings	(35)		(b)	—		7		(28)
Balance at March 31, 2023	$	582		$	(8)	$	(413)	$	161

(a) Includes approximately $285 million of deferred income tax expense that will not be recognized in net income until the related pension and postretirement benefit obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations.

(b) This AOCI component is included in the computation of net periodic pension and other postretirement costs, specifically the following components: amortization of unrecognized (gain) loss, amortization of prior service credit and other (see Note 5 of this report for additional information).

XML

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):

	Pension Benefits				Other Postretirement Benefits				Affected Line Item in the Statements of  Consolidated Operations
	2024		2023		2024		2023
Service cost	$	34	$	31	$	1	$	1	Salaries and related costs
Interest cost	57		55		10		10		Miscellaneous, net
Expected return on plan assets	(69)		(63)		—		—		Miscellaneous, net
Amortization of unrecognized (gain) loss	5		2		(7)		(9)		Miscellaneous, net
Amortization of prior service credit	—		—		(23)		(28)		Miscellaneous, net
Total	$	27	$	25	$	(19)	$	(26)

XML

Fair value measurements, investments and notes receivable (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The table below presents disclosures about the financial assets and liabilities measured at fair value on a recurring basis in UAL's financial statements (in millions):

	March 31, 2024								December 31, 2023
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	8,401	$	8,401	$	—	$	—	$	6,058	$	6,058	$	—	$	—
Restricted cash — current	40		40		—		—		31		31		—		—
Restricted cash — non-current	244		244		—		—		245		245		—		—
Short-term investments:
U.S. government and agency notes	5,518		—		5,518		—		8,257		—		8,257		—
Certificates of deposit placed through an account registry service ("CDARS")	73		—		73		—		73		—		73		—
Long-term investments:
Equity securities	116		116		—		—		177		177		—		—

Schedule of Carrying Values and Estimated Fair Values of Financial Instruments

The table below presents the carrying values and estimated fair values of financial instruments not presented in the tables above (in millions). Carrying amounts include any related discounts, premiums and issuance costs:

	March 31, 2024										December 31, 2023
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	27,017	$	26,480	$	—	$	20,319	$	6,161	$	29,075	$	28,302	$	—	$	22,543	$	5,759

Schedule of Fair Value Measurement Inputs and Valuation Techniques

Fair value of the financial instruments included in the tables above was determined as follows:

Description	Fair Value Methodology
Cash and cash equivalents and Restricted cash (current and non-current)	The carrying amounts of these assets approximate fair value.
Short-term and Long-term investments	Fair value is based on (a) the trading prices of the investment or similar instruments or (b) broker quotes obtained by third-party valuation services.
Long-term debt	Fair values were based on either market prices or the discounted amount of future cash flows using our current incremental rate of borrowing for similar liabilities or assets.

XML

Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Firm Commitments

As of March 31, 2024, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") as presented in the table below:

		Contractual Aircraft Deliveries			Expected Aircraft Deliveries (b)
Aircraft Type	Number of Firm  Commitments (a)	Last Nine Months of 2024	2025	After 2025	Last Nine Months of 2024	2025	After 2025
787	150	8	18	124	5	12	133
737 MAX 8	36	36	—	—	19	17	—
737 MAX 9	144	34	40	70	10	44	90
737 MAX 10	167	—	—	167	—	—	167
A321neo	123	23	38	62	22	24	77
A321XLR	50	—	8	42	—	1	49
A350	45	—	—	45	—	—	45
(a) United also has options and purchase rights for additional aircraft.
(b) Expected aircraft deliveries reflect adjustments to contractual delivery schedules as communicated by Boeing and Airbus or estimated by United. However, aircraft deliveries are subject to a number of variables, as further described in Part I, Item 1A. Risk Factors of the 2023 Form 10-K, and we cannot guarantee delivery of any particular aircraft at any specific time notwithstanding firm purchase commitments.

Schedule of Commitments

The table below summarizes United's firm commitments as of March 31, 2024, which include aircraft and related spare engines, aircraft improvements and non-aircraft capital commitments. Aircraft commitments are based on contractual scheduled aircraft deliveries without any adjustments communicated by Boeing and Airbus or estimated by United but reflecting the discounts related to future deliveries offered as part of the April 14, 2024 arrangements between United and Boeing.

(in billions)
Last nine months of 2024	$	7.1
2025	7.4
2026	5.5
2027	4.3
2028	6.4
After 2028	27.1
	$	57.8

Schedule of Estimated Future payments of Contractual Obligation

Based on these assumptions as of March 31, 2024, our estimated future payments through the end of the terms of our CPAs are presented in the table below:

(in billions)
Last nine months of 2024	$	1.9
2025	2.3
2026	2.2
2027	1.8
2028	1.3
After 2028	4.2
	$	13.7

XML

Debt (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Contractual Principal Payments

The table below presents the Company's contractual principal payments (not including $267 million of unamortized debt discount, premiums and debt issuance costs) as of March 31, 2024 under then-outstanding long-term debt agreements (in millions):

Last nine months of 2024	$	2,936
2025	3,459
2026	5,255
2027	2,486
2028	1,648
After 2028	11,500
	$	27,284

XML

Special Charges (Tables)

3 Months Ended

Mar. 31, 2024

Restructuring and Related Activities [Abstract]

Schedule of Components of Special Charges

For the three months ended March 31, operating and nonoperating special charges and unrealized (gains) losses on investments in the statements of consolidated operations consisted of the following (in millions):

	Three Months Ended March 31,
	2024		2023
Operating:
(Gains) losses on sale of assets and other special charges	$	13	$	14
Total operating special charges	13		14
Nonoperating:
Nonoperating unrealized (gains) losses on investments, net	37		(24)
Nonoperating debt extinguishment and modification fees	35		—
Total nonoperating special charges and unrealized (gains) losses on investments, net	72		(24)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net	85		(10)
Income tax benefit, net of valuation allowance	(11)		(3)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes	$	74	$	(13)

XML

Revenue - Schedule of Operating Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 12,539	$ 11,429
Domestic (U.S. and Canada)
Disaggregation of Revenue [Line Items]
Total operating revenue	7,673	7,167
Atlantic
Disaggregation of Revenue [Line Items]
Total operating revenue	1,833	1,832
Latin America
Disaggregation of Revenue [Line Items]
Total operating revenue	1,445	1,316
Pacific
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 1,588	$ 1,114

XML

Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue From Contract With Customer [Line Items]
Total operating revenue	$ 12,539	$ 11,429
Advance Ticket Sales
Revenue From Contract With Customer [Line Items]
Revenue recognized	4,000	3,500
Ancillary Fees
Revenue From Contract With Customer [Line Items]
Total operating revenue	984	892
Other Operating Revenue
Revenue From Contract With Customer [Line Items]
Total operating revenue	835	757
Other Operating Revenue | Chase and Other Partner Agreements
Revenue From Contract With Customer [Line Items]
Total operating revenue	$ 714	$ 646

XML

Revenue - Roll Forward of Frequent Flyer Deferred Revenue (Details) - Frequent Flyer - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Frequent Flyer Deferred Revenue [Roll Forward]
Total Frequent flyer deferred revenue - beginning balance	$ 7,143	$ 6,675
Total miles awarded	840	747
Travel miles redeemed	(665)	(531)
Non-travel miles redeemed	(39)	(31)
Total Frequent flyer deferred revenue - ending balance	$ 7,279	$ 6,860

XML

Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Loss available to common stockholders	$ (124)	$ (194)
Weighted-average shares outstanding, basic (in shares)	328.3	327.4
Weighted-average shares outstanding, diluted(in shares)	328.3	327.4
Loss per share, basic (in dollars per share)	$ (0.38)	$ (0.59)
Loss per share, diluted (in dollars per share)	$ (0.38)	$ (0.59)
CARES Act Loan Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrants to purchase securities (in shares)	10.0
CARES Act Loan Warrants | Minimum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrant exercise price (in dollars per share)	$ 31.50
CARES Act Loan Warrants | Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrant exercise price (in dollars per share)	$ 53.92
Stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	3.5	1.5
Employee stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities (in shares)	0.5	0.7

XML

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Deferred Taxes
Balance beginning	$ (347)	$ (416)
Changes in value	0	(4)
Amounts reclassified to earnings	5	7
Balance ending	(342)	(413)
Total
Balance beginning	9,324	6,896
Changes in value	1	14
Amounts reclassified to earnings	(20)	(28)
Balance ending	9,188	6,668
Accumulated Other Comprehensive Income (Loss)
Total
Balance beginning	(62)	175
Balance ending	(81)	161
Deferred income tax expense	285	285
Pension and Other Postretirement Liabilities
Before Tax
Balance beginning	289	626
Changes in value	3	(9)
Amounts reclassified to earnings	(25)	(35)
Balance ending	267	582
Investments and Other
Before Tax
Balance beginning	(4)	(35)
Changes in value	(2)	27
Amounts reclassified to earnings	0	0
Balance ending	$ (6)	$ (8)

XML

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	24.40%	24.20%

XML

Employee Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 34	$ 31
Interest cost	57	55
Expected return on plan assets	(69)	(63)
Amortization of unrecognized (gain) loss	5	2
Amortization of prior service credit	0	0
Total	27	25
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	10	10
Expected return on plan assets	0	0
Amortization of unrecognized (gain) loss	(7)	(9)
Amortization of prior service credit	(23)	(28)
Total	$ (19)	$ (26)

XML

Fair value measurements, investments and notes receivable - Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Measured on a Recurring Basis - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 8,401	$ 6,058
Restricted cash — current	40	31
Restricted cash — non-current	244	245
Equity securities	116	177
U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	5,518	8,257
Certificates of deposit placed through an account registry service ("CDARS")
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	73	73
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	8,401	6,058
Restricted cash — current	40	31
Restricted cash — non-current	244	245
Equity securities	116	177
Level 1 | U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 1 | Certificates of deposit placed through an account registry service ("CDARS")
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash — current	0	0
Restricted cash — non-current	0	0
Equity securities	0	0
Level 2 | U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	5,518	8,257
Level 2 | Certificates of deposit placed through an account registry service ("CDARS")
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	73	73
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash — current	0	0
Restricted cash — non-current	0	0
Equity securities	0	0
Level 3 | U.S. government and agency notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	0	0
Level 3 | Certificates of deposit placed through an account registry service ("CDARS")
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments:	$ 0	$ 0

XML

Fair value measurements, investments and notes receivable - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) aircraft
Fair Value [Line Items]
Equity method investments	$ 230
Carrying amount of loan receivable	$ 86
Republic Airways Holdings Inc.
Fair Value [Line Items]
Number of aircraft operated | aircraft	66
Champlain Enterprises LLC
Fair Value [Line Items]
Number of aircraft operated | aircraft	53
Republic Airways Holdings Inc.
Fair Value [Line Items]
Ownership stake	19.00%
CommuteAir LLC
Fair Value [Line Items]
Ownership stake	40.00%
United Airlines Ventures Sustainable Flight Fund
Fair Value [Line Items]
Ownership stake	33.00%
Fulcrum BioEnergy, Inc., Boom, Alder Fuels LLC, Heart Aerospace Incorporated and ZeroAvia, Inc.
Fair Value [Line Items]
Investment carrying value	$ 421
Corporate Debt | Maximum
Fair Value [Line Items]
Available-for-sale securities remaining maturities	17 months

XML

Fair value measurements, investments and notes receivable - Schedule of Carrying Values and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, carrying amount	$ 27,017	$ 29,075
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	26,480	28,302
Fair Value | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	0	0
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	20,319	22,543
Fair Value | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value	$ 6,161	$ 5,759

XML

Commitments and Contingencies - Schedule of Firm Commitments (Details)	Mar. 31, 2024 aircraft_commitment aircraft
787
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	150
Contractual Aircraft Deliveries
Last Nine Months of 2024	8
2025	18
After 2025	124
Expected Aircraft Deliveries
Last Nine Months of 2024	5
2025	12
After 2025	133
737 MAX 8
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	36
Contractual Aircraft Deliveries
Last Nine Months of 2024	36
2025	0
After 2025	0
Expected Aircraft Deliveries
Last Nine Months of 2024	19
2025	17
After 2025	0
737 MAX 9
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	144
Contractual Aircraft Deliveries
Last Nine Months of 2024	34
2025	40
After 2025	70
Expected Aircraft Deliveries
Last Nine Months of 2024	10
2025	44
After 2025	90
737 MAX 10
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	167
Contractual Aircraft Deliveries
Last Nine Months of 2024	0
2025	0
After 2025	167
Expected Aircraft Deliveries
Last Nine Months of 2024	0
2025	0
After 2025	167
A321neo
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	123
Contractual Aircraft Deliveries
Last Nine Months of 2024	23
2025	38
After 2025	62
Expected Aircraft Deliveries
Last Nine Months of 2024	22
2025	24
After 2025	77
A321XLR
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	50
Contractual Aircraft Deliveries
Last Nine Months of 2024	0
2025	8
After 2025	42
Expected Aircraft Deliveries
Last Nine Months of 2024	0
2025	1
After 2025	49
A350
Long-term Purchase Commitment [Line Items]
Number of Firm Commitments | aircraft_commitment	45
Contractual Aircraft Deliveries
Last Nine Months of 2024	0
2025	0
After 2025	45
Expected Aircraft Deliveries
Last Nine Months of 2024	0
2025	0
After 2025	45

XML

Commitments and Contingencies - Schedule of Commitments (Details) $ in Billions	Mar. 31, 2024 USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Last nine months of 2024	$ 1.9
2025	2.3
2026	2.2
2027	1.8
2028	1.3
After 2028	4.2
Total commitments	13.7
Capital Commitments
Unrecorded Unconditional Purchase Obligation [Line Items]
Last nine months of 2024	7.1
2025	7.4
2026	5.5
2027	4.3
2028	6.4
After 2028	27.1
Total commitments	$ 57.8

XML

Commitments and Contingencies - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) employee	Apr. 17, 2024 aircraft
United Airlines, Inc.
Commitments and Contingencies [Line Items]
Number of employees | employee	104,500
Percentage of employees represented by various U.S. labor organizations	83.00%
Tax-Exempt Special Facilities Revenue Bonds
Commitments and Contingencies [Line Items]
Aggregate principal amount of guarantee	$ 1,900
Aircraft Mortgage Debt
Commitments and Contingencies [Line Items]
Aggregate principal amount of guarantee	73
Floating Rate Debt
Commitments and Contingencies [Line Items]
Long-term debt	$ 10,100
Remaining term of debt	12 years
Loans and Leases from Non-U.S. Entities
Commitments and Contingencies [Line Items]
Remaining term of debt	12 years
Aggregate balance	$ 6,900
Subsequent Event | A321neo
Commitments and Contingencies [Line Items]
Number of aircrafts with expected deliveries in 2026 and 2027 | aircraft		35

XML

Commitment and Contingencies - Schedule of Estimated Future payments of Contractual Obligation (Details) $ in Billions	Mar. 31, 2024 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Last nine months of 2024	$ 1.9
2025	2.3
2026	2.2
2027	1.8
2028	1.3
After 2028	4.2
Total commitments	$ 13.7

XML

Debt - Narrative (Details) - USD ($) $ in Millions			3 Months Ended
	Feb. 22, 2024	Feb. 15, 2024	Mar. 31, 2024	Mar. 31, 2023	Apr. 16, 2024
Debt Instrument [Line Items]
Repayments of long-term debt			$ 5,031	$ 820
Unamortized debt discount			267
Secured Debt | Term Loan Due 2021
Debt Instrument [Line Items]
Repayments of long-term debt	$ 1,370
Secured Debt | Term Loan Facility
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 2,500
Secured Debt | Secured Overnight Financing Rate (SOFR) | Term Loan Facility
Debt Instrument [Line Items]
Percent spread on variable rate	2.75%
Debt instrument, interest rate floor	0.00%
Secured Debt | Other Market Rate Loans | Term Loan Facility
Debt Instrument [Line Items]
Percent spread on variable rate	1.75%
Debt instrument, interest rate floor	1.00%
Secured Debt | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, increase (decrease) in maximum borrowing capacity		$ 1,115
Undrawn and available amount under revolving credit facility			$ 2,870
Secured Debt | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility, increase (decrease) in maximum borrowing capacity					$ 100
Secured Debt | Revolving Credit Facility | Extending Lenders
Debt Instrument [Line Items]
Maximum borrowing capacity		2,700
Secured Debt | Revolving Credit Facility | Extending Lenders | Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity					2,800
Secured Debt | Revolving Credit Facility | Non-Extending Lenders
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 165
Secured Debt | Revolving Credit Facility | Non-Extending Lenders | Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 165
Secured Debt | Revolving Credit Facility | Non-Extending Lenders | Secured Overnight Financing Rate (SOFR) | Minimum
Debt Instrument [Line Items]
Percent spread on variable rate		3.00%
Secured Debt | Revolving Credit Facility | Non-Extending Lenders | Secured Overnight Financing Rate (SOFR) | Maximum
Debt Instrument [Line Items]
Percent spread on variable rate		3.50%
Secured Debt | Revolving Credit Facility | Non-Extending Lenders | Other Market Rate Loans | Minimum
Debt Instrument [Line Items]
Percent spread on variable rate		2.00%
Secured Debt | Revolving Credit Facility | Non-Extending Lenders | Other Market Rate Loans | Maximum
Debt Instrument [Line Items]
Percent spread on variable rate		2.50%

XML

Debt - Schedule of Contractual Principal Payments (Details) - UAL And United $ in Millions	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Last nine months of 2024	$ 2,936
2025	3,459
2026	5,255
2027	2,486
2028	1,648
After 2028	11,500
Total long-term debt	$ 27,284

XML

Special Charges - Schedule of Components of Special Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating:
(Gains) losses on sale of assets and other special charges	$ 13	$ 14
Total operating special charges	13	14
Nonoperating:
Nonoperating unrealized (gains) losses on investments, net	37	(24)
Nonoperating debt extinguishment and modification fees	35	0
Total nonoperating special charges and unrealized (gains) losses on investments, net	72	(24)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net	85	(10)
Income tax benefit, net of valuation allowance	(11)	(3)
Total operating and nonoperating special charges and unrealized (gains) losses on investments, net of income taxes	$ 74	$ (13)

XML

Special Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Restructuring and Related Activities [Abstract]
(Gains) losses on sale of assets and other special charges	$ 13	$ 14
Nonoperating unrealized (gains) losses	37	$ (24)
Deferred debt issuance cost, writeoff	$ 35