Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating revenues:
Total operating revenues	$ 1,280,889	$ 1,432,472	$ 2,546,426	$ 2,782,246
Operating expenses:
Aircraft fuel	407,296	391,032	813,647	878,743
Salaries, wages and benefits	418,378	407,705	849,861	796,890
Landing fees and other rents	116,064	106,487	222,782	203,832
Aircraft rent	125,339	92,101	240,545	177,368
Depreciation and amortization	84,486	80,542	165,832	158,533
Maintenance, materials and repairs	52,453	56,825	107,368	111,239
Distribution	45,923	50,701	91,099	98,718
Special charges (credits)	(381)	19,972	35,877	33,955
Loss (gain) on disposal of assets	(14,047)	802	(17,076)	7,902
Other operating	197,890	206,094	396,340	407,250
Total operating expenses	1,433,401	1,412,261	2,906,275	2,874,430
Operating income (loss)	(152,512)	20,211	(359,849)	(92,184)
Other (income) expense:
Interest expense	54,307	28,880	109,116	80,673
Loss (gain) on extinguishment of debt	0	0	(14,996)	0
Capitalized interest	(5,689)	(8,445)	(15,692)	(16,093)
Interest income	(12,169)	(15,962)	(25,759)	(31,396)
Other (income) expense	665	766	(65,825)	1,308
Total other (income) expense	37,114	5,239	(13,156)	34,492
Income (loss) before income taxes	(189,626)	14,972	(346,693)	(126,676)
Provision (benefit) for income taxes	3,301	17,321	(11,131)	(20,416)
Net income (loss)	$ (192,927)	$ (2,349)	$ (335,562)	$ (106,260)
Basic earnings (loss) per share (in dollars per share)	$ (1.76)	$ (0.02)	$ (3.07)	$ (0.97)
Diluted earnings (loss) per share (in dollars per share)	$ (1.76)	$ (0.02)	$ (3.07)	$ (0.97)
Passenger
Operating revenues:
Total operating revenues	$ 1,253,803	$ 1,410,061	$ 2,493,113	$ 2,737,534
Other
Operating revenues:
Total operating revenues	$ 27,086	$ 22,411	$ 53,313	$ 44,712