| Codes | City |
| ATL | Atlanta |
| BMI | Bloomingdale/Normal, IL |
| BWI | Baltimore-Washington, MD |
| BOS | Boston, MD |
| BUF | Buffalo/ Niagara Falls, NY |
| CAK | Akron/Canton, OH |
| CHS | Charleston, SC |
| CLT | Charlotte, NC |
| DAB | Daytona Beach, FL |
| DAY | Dayton, OH |
| DCA | Washington, D.C. Ronald Reagan National Airport |
| DEN | Denver, CO |
| DFW | Dallas/ Ft. Worth, TX |
| DTW | Detroit, MI |
| EWR | Newark, NJ |
| FLL | Ft. Lauderdale/ Hollywood, FL |
| FNT | Flint, MI |
| FPO | Freeport, Bahamas |
| GPT | Gulfport/ Biloxi, MS |
| HOU | Houston, TX - Hobby Airport |
| HPN | White Plains, NY |
| IAD | Washington, D.C. - Dulles |
| ICT | Wichita, KS |
| IND | Indianapolis, IN |
| JAX | Jacksonville, FL |
| LAS | Las Vegas, NV |
| LAX | Los Angeles, CA |
| LGA | (LaGuardia) New York, NY |
| MCI | Kansans City, MO |
| MCO | Orlando, FL |
| MDW | Chicago, IL - Midway Airport |
| MEM | Memphis, TN |
| MIA | Miami, FL |
| MKE | Milwaukee, WI |
| MLI | Moline, IL / Quad Cities |
| MSP | Minneapolis/ St. Paul, MN |
| MSY | New Orleans, LA |
| PBI | West Palm Beach, FL |
| PHF | Newport News/ Williamsburgh, VA |
| PHX | Phoenix, AZ |
| PIT | Pittsburgh, PA |
| PNS | Pensacola, FL |
| PWM | Portland, ME |
| RIC | Richmond, VA |
| ROC | Rochester, NY |
| RDU | Raleigh, Durham, NC |
| RSW | Fort Myers, FL |
| SAN | San Diego, CA |
| SAV | Savannah/ Hilton Head, GA |
| SEA | Seattle/ Tacoma, WA (seasonal) |
| SFO | San Francisco, CA |
| SRQ | Sarasota/Bradenton, FL |
| STL | St. Louis, MO |
| SWF | Newburgh, NY |
| TPA | Tampa, FL |
