Net Cash Provided by (Used in) Operating Activity
Millions
		2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
AMR Corp		3,142	542	(1,111)	601	717	1,024	1,939	1,935	(1,394)	643	1,050	697
Continental Airlines Inc**		906	567	(46)	342	373	457	1,058	1,133	(324)	(362)	-	-
Delta Air Lines Inc		2,898	236	225	244	(1,023)	(307)	993	1,359	(1,707)	1,379	2,832	2,834
Northwest Airlines Corp		893	646	(284)	375	276	(437)	1,224	1,371	(418)	-	-	-
UAL Corp**		2,472	(160)	(1,139)	1,001	99	1,079	1,562	2,134	(1,239)	966	1,907	2,408
US Airways Group Inc I		697	(112)	(364)	(167)	(89)	-	-	-	-	-	-	-
US Airways Group Inc II		-	-	-	-	-	-	618	442	(980)	59	804	472
America West Holdings Corp		190	152	(23)	242	21	-	-	-	-	-	-	-
--sub Network		11,198	1,871	(2,742)	2,638	374	1,816	7,394	8,374	(6,062)	2,685	6,593	6,411
Southwest Airlines Co		1,298	1,485	520	1,336	1,066	2,118	1,406	2,845	(1,521)	985	1,561	1,385
JetBlue Airways Corp		3	111	217	287	199	170	274	358	(17)	486	523	614
AirTran Holdings Inc		69	95	6	133	38	65	75	182	(180)	118	161	-
Frontier Airlines Holdings Inc*		73	40	1	128	19	80	23	31	(123)	-	-	-
--sub LCC		1,443	1,732	744	1,884	1,322	2,432	1,778	3,416	(1,841)	1,589	2,245	1,999
Alaska Air Group Inc		273	287	125	355	333	270	450	482	164	293	554	696
Hawaiian Holdings Inc		63	57	10	(38)	(8)	58	63	82	134	136	150	179
Midwest Air Group Inc		43	25	27	27	(14)	17	21	-	-	-	-	-
-- sub Other		379	369	162	345	312	345	533	564	299	429	704	875
Total All Sectors		13,020	3,972	(1,835)	4,867	2,008	4,593	9,706	12,353	(7,604)	4,703	9,542	9,285
* Frontier Airlines Inc before 2006. Year end March 31 treated as the year before.
** United and Continental are assumed as a single carrier beginning October 1, 2010
Note: Zero value might also mean data not reported.
Data Source:  SEC 10K Filings