|
AIRLINE
|
HUB(S) |
| Alaska Airlines | ANC, SEA, SFO, LAX |
| America West Airlines | LAS, PHX |
| American Airlines | MIA, ORD, DFW |
| Continetal Airlines | EWR, CLE, IAH |
| Delta Airlines | CVG, ATL, SLC |
| Northwest Airlines | DTW, MEM, MSP |
| Southwest Airlines | CMH, PHX, LAS |
| United Airlines | IAD, ORD, DEN, LAX, SFO |
| US Airways | PHL, PIT, CLT |