1972-1974
Ceased operations
1993-2003
> Duo Airways
Malinair (1985-1987)
1982-2002
Ceased operations
Manx Airlines Europe (1995-1996) > British Regional Airlines / British Airways Express
Markoss Aviation (2001-2008)
1947 - 2000
Acquired
Mediterranean Express (1986-1988)
Mercury Airlines (1957-1964)
Meredith Air Transport (1952-1954) > African Air Safaris
1970-1973
Ceased operations
1982-1985
Ceased operations
Midland & Scottish Air Ferries (1933-1934) Scotland's 1st airline
MK Airlines (2006-2010)
1967 - 2017
Administration
1975 - 1980
Ceased operations
Morton Air Services (1945-1967) > British United Island Airways
2002 - 2008
> Thomas Cook Airlines
2002 - 2003
> Integrated into MyTravel Airways