Because of my 91 job, and the small world that I work in, I don't feel comfortable asking anyone that I have flown with recently for a letter of recommendation. Too much of a chance of it getting back to my present boss. But I know a few people that I can trust from previous jobs. The issue is that its been 4+ years since I have flown with these people, some even longer. Do the airlines disregard LOR's that are more than a certain number of years old? I don't want to bother people for a LOR if it's not going to do me any good.