What would be the best FF program to collect miles for an upcoming flight LHR-LAX-LHR on BA in C class? Are their any promotions currently running that would influence the choice of the FF program?
My main goal is to come one step closer to a free flight (most likely in Y) between Europe and the US.

(edited to add airline)

[This message has been edited by flyer2day (edited Feb 24, 2004).]