M1
Maryland Air
Also known as: Maryland
United States
IATA
M1
Mike One
ICAO
M1F
Radio Callsign
Maryland Flight
Example: "Maryland Flight One Two Three" for M1123
About the "Maryland Flight" Callsign
When Maryland Air pilots communicate with air traffic control, they identify themselves using the radio callsign "Maryland Flight" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "Maryland Flight Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.