- Mariehamn AirportIdent: EFMACountry: Finland
- Mariental AirportIdent: FYMLCountry: Namibia
- Marina di Campo AirportIdent: LIRJCountry: Italy
- Marinduque AirportIdent: RPUWCountry: Philippines
- Maripasoula AirportIdent: SOOACountry: French Guiana
- Mariquita AirportIdent: SKQUCountry: Colombia
- Mariscal Lamar AirportIdent: SECUCountry: Ecuador
- Mariupol International AirportIdent: UKCMCountry: Ukraine
- Maroantsetra AirportIdent: FMNRCountry: Madagascar
- Marquette Sawyer Regional AirportIdent: KSAWCountry: United States
- Marree AirportIdent: YMRECountry: Australia
- Marsa al Brega AirportIdent: HLMBCountry: Libya
- Marshall Army Air FieldIdent: KFRICountry: United States
- Martin State AirportIdent: KMTNCountry: United States
- Marudi AirportIdent: WBGMCountry: Malaysia
- Mary International AirportIdent: UTAMCountry: Turkmenistan
- Mary North AirportIdent: TM-UT52Country: Turkmenistan
- Maré AirportIdent: NWWRCountry: New Caledonia
- Mason City Municipal AirportIdent: KMCWCountry: United States
- Masroor Air BaseIdent: OPMRCountry: Pakistan
- Massawa International AirportIdent: HHMSCountry: Eritrea
- Massena International Airport Richards FieldIdent: KMSSCountry: United States
- Masset AirportIdent: CZMTCountry: Canada
- Masvingo International AirportIdent: FVMVCountry: Zimbabwe
- Matagami AirportIdent: CYNMCountry: Canada
- Matahora AirportIdent: WAWDCountry: Indonesia
- Mataiva AirportIdent: NTGVCountry: French Polynesia
- Matan al-Sarra Air BaseIdent: HL56Country: Libya
- Matane AirportIdent: CYMECountry: Canada
- Matari AirportIdent: FZJHCountry: Congo - Kinshasa
- Matecaña International AirportIdent: SKPECountry: Colombia
- Mati National AirportIdent: RPMQCountry: Philippines
- Matsapha International AirportIdent: FDMSCountry: Eswatini
- Matsu Beigan AirportIdent: RCMTCountry: Taiwan
- Matsu Nangan AirportIdent: RCFGCountry: Taiwan
- Mattala Rajapaksa International AirportIdent: VCRICountry: Sri Lanka
- Maupiti AirportIdent: NTTPCountry: French Polynesia
- Maxwell Air Force BaseIdent: KMXFCountry: United States
- Mayaguana AirportIdent: MYMMCountry: Bahamas
- Maymana Zahiraddin Faryabi AirportIdent: OAMNCountry: Afghanistan
- Mayo AirportIdent: CYMACountry: Canada
- Mayor Buenaventura Vivas International AirportIdent: SVSOCountry: Venezuela
- Mayor General FAP Armando Revoredo Iglesias AirportIdent: SPJRCountry: Peru
- Mbandaka AirportIdent: FZEACountry: Congo - Kinshasa
- Mbanza Congo AirportIdent: FNBCCountry: Angola
- MBS International AirportIdent: KMBSCountry: United States
- Mbuji Mayi AirportIdent: FZWACountry: Congo - Kinshasa
- Mc Alester Regional AirportIdent: KMLCCountry: United States
- Mc Entire Joint National Guard BaseIdent: KMMTCountry: United States
- Mc Guire Air Force BaseIdent: KWRICountry: United States
- McAllen Miller International AirportIdent: KMFECountry: United States
- MCAS New River / McCutcheon FieldIdent: KNCACountry: United States
- McCall Municipal AirportIdent: KMYLCountry: United States
- McChord Air Force BaseIdent: KTCMCountry: United States
- McClellan AirfieldIdent: KMCCCountry: United States
- McClellan-Palomar AirportIdent: KCRQCountry: United States
- McComb-Pike County Airport / John E Lewis FieldIdent: KMCBCountry: United States
- McConnell Air Force BaseIdent: KIABCountry: United States
- McCook Ben Nelson Regional AirportIdent: KMCKCountry: United States
- McGrath AirportIdent: PAMCCountry: United States