CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating Revenue
Total Operating Revenue	$ 3,137	$ 2,232
Operating Expenses
Wages and benefits	1,127	804
Variable incentive pay	62	44
Aircraft fuel, including hedging gains and losses	681	565
Aircraft maintenance	220	122
Aircraft rent	62	47
Landing fees and other rentals	242	165
Contracted services	145	97
Selling expenses	100	77
Depreciation and amortization	194	126
Food and beverage service	85	58
Third-party regional carrier expense	64	54
Other	261	205
Special items - operating	91	34
Total Operating Expenses	3,334	2,398
Operating Income	(197)	(166)
Non-operating Income (Expense)
Interest income	26	17
Interest expense	(66)	(35)
Interest capitalized	12	6
Other - net	(8)	0
Total Non-operating Expense	(36)	(12)
Loss Before Income Tax	(233)	(178)
Income tax benefit	(67)	(46)
Net Loss	$ (166)	$ (132)
Basic earnings per share	$ (1.35)	$ (1.05)
Diluted loss per share (in dollars per share)	$ (1.35)	$ (1.05)
Weighted Average Shares Outstanding used for computation:
Basic	123,134,000	125,970,000
Diluted	123,134,000	125,970,000
Passenger revenue
Operating Revenue
Total Operating Revenue	$ 2,808	$ 2,004
Passenger revenue | Passenger
Operating Revenue
Total Operating Revenue	2,808	2,004
Mileage Plan Revenue
Operating Revenue
Total Operating Revenue	523	412
Mileage Plan Revenue | Passenger
Operating Revenue
Total Operating Revenue	316	248
Mileage Plan Revenue | Mileage plan other revenue
Operating Revenue
Total Operating Revenue	207	164
Cargo and other revenue
Operating Revenue
Total Operating Revenue	122	64
Cargo and other revenue | Cargo and Freight
Operating Revenue
Total Operating Revenue	$ 122	$ 64