so to extend this question, here's a scenario I deal with often. Company books me for a deadhead home on Airline A at 8pm, but there's a flight on Airline B 2 hours sooner. Is it ok to jump on Airline B even though you have a paid ticket somewhere else? I've done this several times but always with the personal policy that I'd never bump another guy out of the JS; even if I'd win priority I'd give it up and go take my confirmed seat later.