Callsign TUB is TUI fly Belgium
WHAT AIRLINE IS TUB?
TUB is the ICAO three-letter callsign prefix for TUI fly Belgium. When a radio scanner, flight tracker or radar scope shows a flight like TUB123 or TUB45XY overhead, that's a TUI fly Belgium aircraft talking to air traffic control.
Spot one yourself: open the live scope, enter your postcode, and tap any blip whose callsign starts with TUB for its type, registration, route and photo.