EVERY Airline has delays!!!!!!!!!!!! NOT just United. The problem with United is that the pilots are refusing to fly overtime. If they are about to start a trip that will put them over, they wont fly it, thus creating massive delays. Lets use this as an example. You are a 757 pilot and are about to fly a trip from IAD to LAX, now you are based in Washington D.C. so you are going away, on this trip. Now this trip will put you over by 4 hours. So, since the pilots refuse to fly overtime, they will ground the plane at IAD, and not fly the trip! So, then the next flight for that plane will be cancled, and so will most fo the others after that. If you have a spare plane that can fill in, put it in, in its place, but one flight cancled messes up the whole system!