Condensed Consolidated Statements of Operations (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating revenues:
Revenues	$ 461,279,000	$ 771,081,000
Operating expenses:
Salaries, wages and benefits	245,692,000	240,480,000
Aircraft fuel	142,930,000	213,208,000
Depreciation and amortization	74,312,000	65,991,000
Landing fees and other rents	72,108,000	67,121,000
Aircraft rent	54,782,000	45,146,000
Maintenance, materials and repairs	29,903,000	34,076,000
Distribution	23,642,000	33,743,000
Loss on disposal of assets	1,117,000	0
Special credits	(176,938,000)	0
Other operating	96,261,000	129,308,000
Total operating expenses	563,809,000	829,073,000
Operating income (loss)	(102,530,000)	(57,992,000)
Other (income) expense:
Interest expense	44,806,000	23,878,000
Capitalized interest	(4,732,000)	(3,664,000)
Interest income	(4,371,000)	(3,593,000)
Other (income) expense	(52,000)	(19,000)
Total other (income) expense	35,651,000	16,602,000
Income (loss) before income taxes	(138,181,000)	(74,594,000)
Provision (benefit) for income taxes	(25,860,000)	(46,766,000)
Net income (loss)	$ (112,321,000)	$ (27,828,000)
Basic earnings (loss) per share (in dollars per share)	$ (1.15)	$ (0.41)
Diluted earnings (loss) per share (in dollars per share)	$ (1.15)	$ (0.41)
Passenger
Operating revenues:
Revenues	$ 450,335,000	$ 753,550,000
Other
Operating revenues:
Revenues	$ 10,944,000	$ 17,531,000