I was poking around on ExpertFlyer trying to rebook a flight out of Boston sometime in July leaving on a wednesday. It seems everything to the west coast is showing zero for any class under M. Everything. Is this some kind of fluke? I tried a few flights on the Delta sight and sometimes got partial L and U fares, but these were usually really, really expensive for what I get on those fare classes. Is this a fluke with expert flyer? Are there really that many people flying out of Boston (from the sounds of it around here - all the airlines are hurting bad!)? Should I just give up?