| Abbreviation | Definition |
|---|---|
| M24 | Dean Griffin Memorial Airport, Wiggins, Mississippi USA |
| M25 | Mayfield Graves County Airport, Mayfield, Kentucky USA |
| M26 | Windsor Municipal Airport, Windsor, Missouri USA |
| M27 | Waldron Municipal Airport, Waldron, Arkansas USA |
| M28 | Mid Continent Airport, Hayti, Missouri USA |
| M29 | Hassell Field Airport, Clifton, Tennessee USA |
| M40 | Monroe County Airport, Aberdeen, Mississippi USA |
| M76 | Picayune Airport, Picayune, Mississippi USA |
| M97 | Tunica Municipal Airport, Tunica, Mississippi USA |
| M99 | Saline County Airport/ Watts Field, Benton, Arkansas USA |
| MAA | Chennai/ Madras, India |
| MAB | Maraba, PA, Brazil |
| MAD | Madrid, Spain |
| MAF | Midland/ Odessa, Texas USA |
| MAG | Madang, Papua New Guinea |
| MAH | Menorca, Spain |
| MAJ | Majuro, Marshall Islands |
| MAK | Malakal, Sudan |
| MAM | Matamoros, Mexico |
| MAN | Manchester, England, UK |