Becasue a B737 opps a ALC flight and up untill Jan it changes to a A319 ,
David1994, how do you know it changes to a 319??? I was not aware that the airline announced what type of AC were operating?
It is however, not unusual for some 319s to do W patterns through BFS enroute to say Nice or Malaga in which case you could be on a 319 from mainland Europe to BFS or VV. The morning Bristol aircraft has done this and also the morning Belfast Bristol 737 will do the same going in the opposite direction. I think it was BFS AGP BRS BFS and the 319 doing BRS BFS AGP BRS.
May stand to be corrected!!!
I also do note that the BFS ALC Times have changed for the winter, as I use this route quite often myself. It used to be a 0600 departure now its 0730 most days and in winter it will usually go at 1045 am.
EI-BUD