5W
Astraeus
United Kingdom
IATA
5W
Five Whiskey
ICAO
AEU
Radio Callsign
FLYSTAR
Example: "FLYSTAR One Two Three" for 5W123
About the "FLYSTAR" Callsign
When Astraeus pilots communicate with air traffic control, they identify themselves using the radio callsign "FLYSTAR" followed by the flight number spoken in aviation pronunciation. For example, flight 456 would be "FLYSTAR Four Five Six." Radio callsigns are assigned by ICAO and are distinct from the airline's marketing name.