| Alaska Airlines (AS) | Delta Air Lines (DL) | Frontier Airlines Inc. (F9) |
| Northwest Airlines (NW) | Southwest Airlines (WN) | Sun Country Airlines (SY) |
| US Airways (US) | United Airlines (UA) |
| Boise (BOI) | Bullhead City (IFP) | Chicago O'Hare International Apt (ORD) |
| Denver Intl Apt (DEN) | Las Vegas McCarran International Apt (LAS) | Minneapolis International Apt (MSP) |
| Oakland International Apt (OAK) | Phoenix Sky Harbor Intl Apt. (PHX) | Portland (PDX) |
| Salt Lake City (SLC) | Seattle/Tacoma International Apt (SEA) |