Originally Posted by kq747

This is not entirely true when it comes to IAH. There is a small amount predictability when is comes to ULR routes as there are only a limited number of 77W's with the higher MTOW that can operate the routes. Usually this means older frames will operate such routes. It just so happens the newest 77W with the new J class seat is among them. Not sure how many more frames with the higher MTOW are to be delivered but I certainly hope many more