COMMITMENTS (TABLES)

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases and Unrecorded Unconditional Purchase Obligtaions [Table Text Block]

Future minimum fixed payments for commitments as of December 31, 2011 (in millions):

	Aircraft Leases		Facility Leases		Aircraft Commitments		Capacity Purchase Agreements		Engine Maintenance
2012	$	144.2	$	55.9	$	372.4	$	27.1	$	42.1
2013	135.1		31.6		289.3		17.4		32.6
2014	125.6		27.7		158.7		17.7		26.2
2015	104.4		17.3		32.0		18.0		10.1
2016	81.9		8.9		1.4		18.3		—
Thereafter	131.4		110.8		2.8		26.5		—
Total	$	722.6	$	252.2	$	856.6	$	125.0	$	111.0