Redigerer IATA-flyselskapskode (avsnitt)

===M===
<!-- when adding a IATA code to the list, please make sure that under the disambiguation page corresponding to the IATA code, the airline is listed! -->
* M2 – [[Mahfooz Aviation]] (Gambia)
* M3 – [[ABSA - Aerolinhas Brasileiras]] (Brasil)
* M3 – [[Air Service (airline)|Air Service]] (Makedonia)
* M3 – [[North Flying]] (Danmark)
* M5 – [[Kenmore Air]] (USA)
* M6 – [[Amerijet International]] (USA)
* M7 – [[MAS Carga]] (Mexico)
* M7 – [[Tropical Airways]] (Haiti)
* M9 – [[Motor Sich]] (Ukraina)
* MA – [[Malév Hungarian Airlines]] (Ungarn)
* MB – [[Execaire]] (Canada)
* MB – [[MNG Airlines]] (Tyrkia)
* MC – [[Air Mobility Command]] (USA)
* MD – [[Air Madagascar]] (Madagaskar)
* ME – [[Middle East Airlines]] (Libanon)
* MF – [[Xiamen Airlines]] (Kina)
* MG – [[Champion Air]] (USA) <!-- MGM Grand Air skiftet navn til Champion Air i 1995 -->
* MH – [[Malaysia Airlines]]/[[Malaysia Airlines Cargo]]
* MI – [[SilkAir]] (Singapore)
* MJ – [[LAPA]] (Argentina) ''ikke lenger operativt''
* MK – [[Air Mauritius]]
* ML – [[African Transport Trading and Investment Company]] (Sudan)
* MM – [[EuroAtlantic Airways]] (Portugal)
* MM – [[SAM Colombia]]
* MN – [[Comair (South Africa)|Comair South Africa]]
* MO – [[Abu Dhabi Amiri Flight]] (De forente arabiske emirater)
* MO – [[Calm Air]] (Canada)
* MP – [[Martinair]] (Nederland)
* MQ – [[American Eagle Airlines]] (USA)
* MR – [[Air Mauritanie]] (Mauritania)
* MS – [[Egypt Air]] (Egypt)
* MT – [[Thomas Cook Airlines]] (USA)
* MU – [[China Eastern Airlines]] (Kina)
* MV – [[Armenian International Airways]] (Armenia)
* MW – [[Maya Island Air]] (Belize)
* MX – [[Mexicana de Aviación]] (Mexico)
* MY – [[MAXjet Airways]] (USA)
* MY – [[Midwest Airlines (Egypt)|Midwest Airlines]] (Egypt)
* MZ – [[Merpati Nusantara Airlines]] (Indonesia)