Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Operating Revenue:
Passenger	$ 566,985	$ 543,315	$ 1,541,795	$ 1,464,715
Other	72,477	55,983	198,245	159,265
Total	639,462	599,298	1,740,040	1,623,980
Operating Expenses:
Aircraft fuel, including taxes and delivery	182,219	181,334	527,497	525,046
Wages and benefits	114,469	112,150	334,441	318,269
Aircraft rent	26,724	27,575	79,098	81,879
Maintenance materials and repairs	51,293	51,705	168,002	160,000
Aircraft and passenger servicing	31,848	31,080	92,929	89,367
Commissions and other selling	32,015	32,288	94,123	98,285
Depreciation and amortization	24,384	22,092	70,960	60,993
Other rentals and landing fees	23,637	21,996	65,855	60,773
Other	46,704	44,644	139,335	129,469
Total	533,293	524,864	1,572,240	1,524,081
Operating Income	106,169	74,434	167,800	99,899
Nonoperating Income (Expense):
Interest expense and amortization of debt discounts and issuance costs	(17,104)	(13,479)	(48,111)	(37,019)
Interest income	471	173	1,088	426
Capitalized interest	1,834	3,005	6,584	9,336
Gains (losses) on fuel derivatives	(27,892)	2,536	(28,506)	(10,931)
Other, net	(5,114)	749	(3,804)	(3,457)
Total	(47,805)	(7,016)	(72,749)	(41,645)
Income Before Income Taxes	58,364	67,418	95,051	58,254
Income tax expense	22,789	26,814	37,224	23,479
Net Income	$ 35,575	$ 40,604	$ 57,827	$ 34,775
Net Income Per Common Stock
Basic (in dollars per share)	$ 0.66	$ 0.78	$ 1.08	$ 0.67
Diluted (in dollars per share)	$ 0.56	$ 0.76	$ 0.94	$ 0.65