Callsign SHT is British Airways Shuttle
WHAT AIRLINE IS SHT?
SHT is the ICAO three-letter callsign prefix for British Airways Shuttle. When a radio scanner, flight tracker or radar scope shows a flight like SHT123 or SHT45XY overhead, that's a British Airways Shuttle aircraft talking to air traffic control.
Spot one yourself: open the live scope, enter your postcode, and tap any blip whose callsign starts with SHT for its type, registration, route and photo.