- Moellenkamp AirportIdent: 63NDServes: Lisbon
- Moen's Ranch AirportIdent: AK52Serves: Fairbanks
- Moffet AirstripIdent: NA56Serves: Barney
- Mogollon AirparkIdent: AZ82Serves: Overgaard
- Mohall Municipal AirportIdent: KHBCServes: Mohall
- Mohawk Air ParkIdent: 27NKServes: Schyler
- Mohican Air ParkIdent: 34OIServes: Lakeville
- Mohr Farm AirportIdent: MS11Serves: Brandon
- Mole AirportIdent: 1OA2Serves: Grafton
- Moller AirportIdent: 8CL6Serves: Maxwell
- Mollica AirportIdent: OI81Serves: Austintown
- Molnau AirparkIdent: 1MN5Serves: Waconia
- Moltz AirportIdent: 50TAServes: Geronimo
- Monarch FieldIdent: 41NRServes: Mocksville
- Mondell FieldIdent: KECSServes: Newcastle
- Monesmith AirportIdent: PA05Serves: Point Pleasant
- Monett Regional AirportIdent: KHFJServes: Pierce City
- Monmouth Executive AirportIdent: KBLMServes: Belmar/Farmingdale
- Monmouth Municipal AirportIdent: C66Serves: Monmouth
- Mono Aircraft AirportIdent: 0KS7Serves: Cheney
- Monona Municipal AirportIdent: 7C3Serves: Monona
- Monroe AirparkIdent: 2FA2Serves: Belleview
- Monroe County Aeroplex AirportIdent: KMVCServes: Monroeville
- Monroe County AirportIdent: K4G5Serves: Woodsfield
- Monroe County AirportIdent: KM40Serves: Aberdeen
- Monroe County AirportIdent: KMNVServes: Madisonville
- Monroe FieldIdent: 2MU9Serves: Hawk Point
- Monroe Municipal AirportIdent: KEFTServes: Monroe
- Montague-Yreka Rohrer FieldIdent: K1O5Serves: Montague
- Montana Creek AirportIdent: 21AKServes: Talkeetna
- Montauk AirportIdent: KMTPServes: Montauk
- Monte Carlo AirportIdent: US-7834Serves: Holts Summit
- Monte Prieto Ranch AirportIdent: 57NMServes: Claunch
- Monte Vista Municipal AirportIdent: KMVIServes: Monte Vista
- Montemadeira Ii AirportIdent: CD97Serves: Hotchkiss
- Monterey Bay Academy AirportIdent: CA66Serves: Watsonville
- Montevideo Chippewa County AirportIdent: KMVEServes: Montevideo
- Montezuma AirportIdent: 19AZServes: Camp Verde
- Montezuma Coöp AirportIdent: 67KSServes: Montezuma
- Montezuma Municipal AirportIdent: K17Serves: Montezuma
- Montfort Ranch AirportIdent: US-7154Serves: Cameron
- Montgomery County AirparkIdent: KGAIServes: Gaithersburg
- Montgomery Ranch AirportIdent: FA64Serves: Arcadia
- Montgomery's Flying M Ranch AirportIdent: FD49Serves: Lake Panasoffkee
- Montgomery-Gibbs Executive AirportIdent: KMYFServes: San Diego
- Montgomery-Wehrman AirportIdent: 4MOServes: Montgomery City
- Monticello AirportIdent: KN37Serves: Monticello
- Monticello Regional AirportIdent: KMXOServes: Monticello
- Monticello Sky Ranch AirportIdent: GA06Serves: Monticello
- Montvale AirparkIdent: TN87Serves: Maryville
- Monument Municipal AirportIdent: 12SServes: Monument
- Monument Valley AirportIdent: UT25Serves: Oljato-Monument Valley
- Moonbow FieldIdent: 25XSServes: Waxahachie
- Moondance Ranch AirportIdent: 87ORServes: Beatty
- Moontown AirportIdent: 3M5Serves: Huntsville
- Moore AirfieldIdent: 01NHServes: Canaan
- Moore AirportIdent: 8TS6Serves: Kaufman
- Moore County AirportIdent: KDUXServes: Dumas
- Moore County AirportIdent: KSOPServes: Carthage
- Moore Creek AirportIdent: 99AKServes: Moore Creek