Flight Numbers

Hello,

Its something that I keep wondereing about, who or what determines airline’s flight number’s? Do the airlines choose their own numbers or are they assigned them?

Thanks,
Astraeus471

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By: tenthije - 11th April 2007 at 21:57

The first two or three numbers/letters are assigned by either ICAO or IATA. Can’t quite recall which but believe it was IATA. The rest of the flight number can be assigned as the airline sees fit using any numbers or letters (Yes, letters can be used as well, but rarely are!). Most airlines go for 3 or 4 numbers for their flight numbers.