| | IATA | ICAO | City | Region | State | Country | | MSO | | Missoula | | MONTANA | USA |
| CNY | | Moab | | UTAH | USA |
| MOB | | Mobile | | ALABAMA | USA |
| MOD | | Modesto | | CALIFORNIA | USA |
| MLI | | Moline | | ILLINOIS | USA |
| MLU | | Monroe | | LOUISIANA | USA |
| MRY | | Monterey / Carmel | | CALIFORNIA | USA |
| MGM | | Montgomery | | ALABAMA | USA |
| MTJ | | Montrose | | COLORADO | USA |
| MGW | | Morgantown | | WEST VIRGINIA | USA |
| MMU | | Morristown | | NEW JERSEY | USA |
| LLY | | Mount Holly | | NEW JERSEY | USA |
| MVN | | Mount Vernon | | ILLINOIS | USA |
| WMH | | Mountain Home | | ARKANSAS | USA |
| MIE | | Muncie | | INDIANA | USA |
| MSL | | Muscle Shoals / Floren... | | ALABAMA | USA |
| MKG | | Muskegon | | MICHIGAN | USA |
| MYR | | Myrtle Beach | | SOUTH CAROLINA | USA |
| MAR | | Maracaibo | | | Venezuela |
| MUN | | Maturin | | | Venezuela |
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