Originally Posted by
jsloan
Still, while you can sometimes have a pretty good idea of when you might be able to get an op-up -- e.g., major holidays, school vacations, etc., when family travel is up and business travel is down -- all it takes is one cancelled connecting flight to free up a couple of seats in Y.
Op-ups out of Economy can be quite a grab bag, but it's not really that rare to have the PE cabin over by 50% or more, which tends to be good odds
