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