5E
SGA Airlines
Thailand
IATA
5E
Five Echo
ICAO
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Radio Callsign
SIAM
Example: "SIAM One Two Three" for 5E123
About the "SIAM" Callsign
When SGA Airlines pilots communicate with air traffic control, they identify themselves using the radio callsign "SIAM" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "SIAM Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.