One more glitch: The "change flight" feature under "My itineraries" doesn't have access to the same fares that the "normal" flight search from the homepage (or same access as phone reps for that matter). Had to change a DTW-IAD flight recently. Website brought up $128, phone rep brought up $128, but lowest fare (exact same itinerary) was $248 (plus $100 change fee, less value of original ticket). Tried multiple times over a few days, always same/similar result. Even sent email to tech support, who were of no help.