DERIVATIVE INSTRUMENTS (TABLES)

9 Months Ended

Sep. 30, 2011

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Price Risk Derivatives [Table Text Block]

The following table summarizes the components of aircraft fuel expense for the three and nine months ended September 30, 2011 and 2010 (in millions):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2011		2010			2011		2010
Raw or “into-plane” fuel cost	$	337.4	$	233.8		$	969.5	$	651.9
(Gains) or losses in value and settlements of fuel hedge contracts	82.7		(12.9		)	42.6		31.3
Aircraft fuel expense	$	420.1	$	220.9		$	1,012.1	$	683.2

Outstanding fuel hedge positions [Table Text Block]

Outstanding fuel hedge positions as of November 3, 2011 are as follows:

	Approximate % of Expected Fuel Requirements		Gallons Hedged (in millions)	Approximate Crude Oil Price per Barrel	Approximate Premium Price per Barrel
Fourth Quarter 2011	50	%	48.6	$86	$11
Remainder of 2011	50	%	48.6	$86	$11
First Quarter 2012	50	%	49.6	$88	$12
Second Quarter 2012	50	%	52.9	$92	$13
Third Quarter 2012	50	%	54.5	$94	$13
Fourth Quarter 2012	50	%	52.1	$92	$13
Full Year 2012	50	%	209.1	$92	$13
First Quarter 2013	38	%	38.4	$93	$14
Second Quarter 2013	32	%	34.7	$92	$15
Third Quarter 2013	27	%	30.1	$93	$15
Fourth Quarter 2013	21	%	22.9	$95	$15
Full Year 2013	29	%	126.1	$93	$14
First Quarter 2014	16	%	17.2	$96	$15
Second Quarter 2014	11	%	12.1	$94	$15
Third Quarter 2014	5	%	6.2	$86	$16
Full Year 2014	8	%	35.5	$94	$15

Schedule of Derivative Assets at Fair Value [Table Text Block]

As of September 30, 2011 and December 31, 2010, the net fair values of the Company's fuel hedge positions were as follows (in millions):

	September 30, 2011		December 31, 2010
Crude oil call options or “caps”	$	75.2	$	129.3
Refining margin swap contracts	3.0		2.0
Total	$	78.2	$	131.3