| - | - | Mayville Municipal | Mayville | |
| - | - | Mc Beth | Klamath Glen | |
| MYL | KMYL | Mc Call Airport | Mc Call | |
| - | - | Mc Campbell | Ingleside | |
| - | - | Mc Carley | Blackfoot | |
| MXY | - | Mc Carthy Airport | McCarthy | |
| - | - | Mc Caslin | Lexington | |
| - | - | Mc Charen | West Point | |
| - | - | Mc Clusky Municipal | Mc Clusky | |
| - | - | Mc Cormick Co | Mc Cormick | |
| - | - | Mc Creary Co | Pine Knot | |
| - | - | Mc Crory-Morton | Mc Crory | |
| - | - | Mc Curtain Co Regional | Idabel | |
| - | - | Mc Dermitt State | Mc Dermitt | |
| - | - | Mc Donald | Taplin | |
| - | - | Mc Elroy | Kremmling | |
| - | - | Mc Gehee Catfish Restaurant | Marietta | |
| - | - | Mc Gehee Municipal | Mc Gehee | |
| - | - | Mc Ginness | Columbia | |
| - | KPWG | Mc Gregor Executive | Waco | |
| - | - | Mc Intosh Municipal | Mc Intosh | |
| - | - | Mc Kenzie | Avinger | |
| - | - | Mc Kenzie Bridge State | Mc Kenzie Bridge | |
| - | - | Mc Kinley | Pearsall | |
| - | - | Mc Laughlin Municipal | Mc Laughlin | |
| - | - | Mc Lean-Gray Co | Mc Lean | |
| - | - | Mc Minn | Weaver | |
| - | - | Mc Neal'S | East Moline | |
| - | - | Mc Ville | Freeport | |
| - | - | Mc Ville Municipal | Mc Ville | |
| MMT | KMMT | McEntire Joint National Guard Base | Columbia | |
| MKF | - | McKenna Army Air Field | Columbus | |
| - | - | Mckeon Aviation | Denison | |
| MMI | KMMI | McMinn County Airport | Athens | |
| MPR | KMPR | McPherson Airport | McPherson | |
| - | - | Mead Flying Service | Mead | |
| - | KMEJ | Meade Municipal | Meade | |
| - | - | Meadow Brook | Walnut Cove | |
| - | - | Meadow Creek Usfs | Meadow Creek | |
| - | - | Meadow Lake | Colorado Springs | |
| - | - | Meadow Lake | Kingston | |
| MEJ | KGKJ | Meadville Airport | Meadville | |
| - | KAVC | Mecklenburg-Brunswick Regional | South Hill | |
| - | - | Mecosta Morton | Mecosta | |
| - | KMDZ | Medford Airport | Medford | |
| - | - | Medford Municipal | Medford | |
| MDR | - | Medfra Airport | Medfra | |
| - | - | Medicine Bow | Medicine Bow | |
| - | - | Medina Municipal Airport | Medina | |
| - | KEEO | Meeker | Meeker | |