Originally Posted by
NorthEasterner
Not all airport FIDS will show the IATA. AENA in Spain will show airline's ICAO prefix for flight numbers. In the UK it is often IATA apart from a few airlines such as TUI which shows TOM instead of BY and EasyJet which shows EZY instead of U2.
AFAICR, Fuerteventura, always shows Jet2 on their FIDS as LSxxxx.
Least they did three weeks ago. Mind you it WAS 10pm, way past my cocoa time.😀