| American Airlines (AA) | Northwest Airlines (NW) | US Airways (US) |
| Continental Airlines (CO) | Southwest Airlines (WN) | United Airlines (UA) |
| Delta Air Lines (DL) |
| Atlanta Hartsfield-Jackson Intl Apt (ATL) | Detroit Wayne County (DTW) | New Orleans Louis Armstrong Intl Apt (MSY) |
| Baltimore Washington International Apt (BWI) | Houston George Bush Intercontinental Ap (IAH) | New York La Guardia Apt (LGA) |
| Charlotte (CLT) | Houston Hobby Apt (HOU) | Newark Liberty International Apt (EWR) |
| Chicago Midway Apt (MDW) | Jacksonville International Apt (JAX) | Orlando International Apt (MCO) |
| Chicago O'Hare International Apt (ORD) | Las Vegas McCarran International Apt (LAS) | Philadelphia International Apt (PHL) |
| Cincinnati Northern Kentucky Intl Apt (CVG) | Louisville International (SDF) | Phoenix Sky Harbor Intl Apt. (PHX) |
| Dallas/Fort Worth Intl Apt (DFW) | Memphis International Apt (MEM) | St Louis Lambert Intl Apt (STL) |
| Dallas/Fort Worth Love Field (DAL) | Nashville (BNA) | Tampa International Apt (TPA) |
| Denver Intl Apt (DEN) |