EZYboy, I think that wearing a suit is the right way to go about things. The only airline interviews I have attended have been BMI and Virgin, and in both cases the guys were wearing suits and the girls smart skirts etc. It gives the airline an idea of how you look in business attire, and shows a level of professionalism. It was not a stupid question to ask.
Does anybody have a clue about how many extra staff BY are taking on?
The advert is a little vague, it would be nice to know exactly where they are recruiting for etc