DERIVATIVE INSTRUMENTS (TABLES)

6 Months Ended

Jun. 30, 2011

DERIVATIVE INSTRUMENTS [Abstract]

Schedule of Price Risk Derivatives [Table Text Block]

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011			2010
Raw or “into-plane” fuel cost	$	343.1	$	222.9	$	632.1		$	418.1
(Gains) or losses in value and settlements of fuel hedge contracts	54.4		32.1		(40.1		)	44.2
Aircraft fuel expense	$	397.5	$	255.0	$	592.0		$	462.3

Outstanding fuel hedge positions [Table Text Block]

Outstanding fuel hedge positions as of August 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
Third Quarter 2011	50	%	51.9	$86	$11
Fourth Quarter 2011	50	%	48.6	$86	$11
Remainder of 2011	50	%	100.5	$86	$11
First Quarter 2012	50	%	48.6	$88	$12
Second Quarter 2012	50	%	51.2	$93	$13
Third Quarter 2012	50	%	53.0	$94	$13
Fourth Quarter 2012	44	%	44.5	$93	$13
Full Year 2012	49	%	197.3	$92	$13
First Quarter 2013	33	%	32.6	$93	$14
Second Quarter 2013	27	%	28.6	$92	$15
Third Quarter 2013	22	%	24.0	$95	$15
Fourth Quarter 2013	16	%	17.1	$97	$15
Full Year 2013	24	%	102.3	$94	$14
First Quarter 2014	11	%	11.5	$100	$15
Second Quarter 2014	6	%	6.0	$99	$15
Full Year 2014	4	%	17.5	$99	$15

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

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

	June 30, 2011		December 31, 2010
Crude oil call options or “caps”	$	153.6	$	129.3
Refining margin swap contracts	2.7		2.0
Total	$	156.3	$	131.3