Condensed Consolidated Statements of Income (unaudited, in thousands, except for per share amounts) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
OPERATING REVENUE:
Scheduled service revenue	$ 133,309	$ 107,452	$ 261,842	$ 217,886
Ancillary revenue:
Air-related charges	45,991	43,501	91,307	86,151
Third party products	8,291	7,152	15,280	12,094
Total ancillary revenue	54,282	50,653	106,587	98,245
Fixed fee contract revenue	9,470	9,903	21,492	21,170
Other revenue	3,388	342	3,759	686
Total operating revenue	200,449	168,350	393,680	337,987
OPERATING EXPENSES:
Aircraft fuel	86,454	62,222	165,641	119,588
Salary and benefits	29,884	26,764	60,749	52,656
Station operations	16,553	15,493	33,026	31,175
Maintenance and repairs	20,132	14,669	36,347	27,439
Sales and marketing	5,407	4,118	10,657	9,201
Aircraft lease rentals	330	571	645	1,078
Depreciation and amortization	10,156	8,351	20,046	17,042
Other	10,821	8,081	18,030	15,482
Total operating expenses	179,737	140,269	345,141	273,661
OPERATING INCOME	20,712	28,081	48,539	64,326
OTHER (INCOME) EXPENSE:
(Earnings) loss from unconsolidated affiliates, net	(20)	(33)	(14)	109
Interest income	(386)	(344)	(662)	(755)
Interest expense	2,235	655	3,031	1,404
Total other (income) expense	1,829	278	2,355	758
INCOME BEFORE INCOME TAXES	18,883	27,803	46,184	63,568
PROVISION FOR INCOME TAXES	6,934	10,241	17,082	23,406
NET INCOME	$ 11,949	$ 17,562	$ 29,102	$ 40,162
Earnings per share to common stockholders:
Basic (in Dollars per share)	$ 0.63	$ 0.88	$ 1.53	$ 2.02
Diluted (in Dollars per share)	$ 0.62	$ 0.87	$ 1.52	$ 1.99
Weighted average shares outstanding used in computing earnings per share to common stockholders:
Basic (in Shares)	18,931	19,805	18,920	19,805
Diluted (in Shares)	19,131	20,170	19,116	20,070