| Alaska Airlines (AS) | American Airlines (AA) | Continental Airlines (CO) |
| Delta Air Lines (DL) | Frontier Airlines Inc. (F9) | Hawaiian Airlines (HA) |
| Jetblue Airways Corporation (B6) | Mexicana De Aviacion (MX) | Northwest Airlines (NW) |
| Southwest Airlines (WN) | US Airways (US) | United Airlines (UA) |