British Airways Express
CityFlyer, although not actually bought by BA until Nov 1998, were the first franchise operator on behalf of British Airways Express as long ago as 1993. The BA Express route LTN-CDG, which ran from March 1994 to October 1995, operated with CityFlyer ATR-42's in British Airways Express colours, using BA flight numbers commercially but CFE ("Flyer") callsigns for ATC.