| Net Cash Provided by (Used in) Investing Activities | |||||||||
| Millions | |||||||||
| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | ||
| AMR Corp | (3,275) | (4,740) | (1,393) | (645) | (1,048) | (1,539) | (1,365) | (234) | |
| Continental Airlines Inc | (68) | (774) | (36) | 53 | 53 | 51 | 366 | 760 | |
| Delta Air Lines Inc | (3,396) | (2,696) | (1,109) | (362) | (320) | 22 | (361) | (625) | |
| Northwest Airlines Corp | (579) | (730) | (1,780) | (2,001) | (473) | 609 | (328) | (396) | |
| UAL Corp | (2,521) | (1,969) | 71 | 339 | (296) | (291) | (250) | (2,560) | |
| US Airways Group Inc I | (2,001) | (867) | 22 | (511) | 83 | - | - | - | |
| US Airways Group Inc II | - | - | - | - | - | - | (903) | 269 | |
| America West Holdings Corp | (204) | (206) | (6) | (492) | 16 | - | - | - | |
| --sub Network | (12,044) | (11,982) | (4,231) | (3,619) | (1,985) | (1,148) | (2,841) | (2,786) | |
| Southwest Airlines Co | (1,135) | (998) | (603) | (1,619) | (1,658) | (1,146) | (1,495) | (1,529) | |
| JetBlue Airways Corp | (241) | (365) | (880) | (987) | (720) | (1,276) | (1,307) | (734) | |
| AirTran Holdings Inc | 4 | (31) | 8 | (65) | (73) | (80) | (252) | (83) | |
| Frontier Airlines Holdings Inc* | (34) | (135) | (198) | (194) | 15 | (96) | (141) | (295) | |
| --sub LCC | (1,407) | (1,529) | (1,673) | (2,865) | (2,436) | (2,598) | (3,195) | (2,640) | |
| Alaska Air Group Inc | (478) | (218) | (361) | (638) | (392) | (481) | (533) | (602) | |
| Hawaiian Holdings Inc | (53) | (9) | (8) | (3) | - | 83 | (261) | (31) | |
| Midwest Air Group Inc | (56) | (59) | (56) | (7) | 13 | 2 | 1 | - | |
| -- sub Other | (587) | (285) | (425) | (648) | (379) | (396) | (793) | (633) | |
| Total All Sectors | (14,038) | (13,796) | (6,330) | (7,132) | (4,800) | (4,142) | (6,828) | (6,059) | |
| * Frontier Airlines Inc before 2006. Year end March 31 treated as the year before. | |||||||||
| Note: Zero value might also mean data not reported. | |||||||||
| Data Source: SEC 10K Filings | |||||||||