>>1257226"Shuttle" is the callsign for all domestic British Airways flights.
"Speedbird" the famous BA callsign is for international flights only, a hold over from BOAC.
"Cityflyer" is BA's other callsign which is used for BA Cityflyer, their Embraer 175 services which operate from London City Airport.
British Airways callsigns can be weird.
Also, towards the end of Concorde's life, around the 1990s, British Airways operated a number of charter flights with their Concordes. These mostly were short 1-2 hour flights which left a UK airport, usually Heathrow to go somewhere in Europe.
These flights often either did supersonic stretches over the Atlantic to Iceland to refuel in Keflavic before returning, or to Northern Spain usually around Bilbao or into the Bay of Biscay to some Western French airport.
Concorde charters were profitable, as passengers paid £800 for a short supersonic flight with no baggage, and with really only drinks served on board. Since relatively little fuel was burned for these joy rides, a lot of smaller airports with long runways got to see a Concorde.
These were ended around the start of the 2000s when Concorde's scheduled services were more in doubt.
