| Alaska Airlines (AS) | Northwest Airlines (NW) | United Airlines (UA) |
| Delta Air Lines (DL) |
| Atlanta Hartsfield-Jackson Intl Apt (ATL) | Great Falls International Apt (GTF) | Salt Lake City (SLC) |
| Denver Intl Apt (DEN) | Minneapolis International Apt (MSP) | Seattle/Tacoma International Apt (SEA) |