Originally Posted by philco
can it still be used if travelling BA?
Yes, when travelling in C, for most airlines including BA and LH.
I do not think BA status, if travelling in Y, will get you there.
Originally Posted by ajacpril
What snack choices might be available before the 6:20 am departure to ZRH?
I have never been there before 06:20 but can only assume that croissants and fruit are available already at that time.