Originally Posted by exerda

Not to go off onto too much of a tangent, but I doubt that. With US exiting *A, IAD is UA's hub for the southeast--EWR and IAH are just too far out of the way to make them viable alternatives for connecting traffic. And there's too much business in the area who won't accept connecting to EWR on a puddle jumper beholden to WX irrops to go TATL. For that matter, the fact that they actually have room to grow at IAD whereas at EWR they don't (due to ATC) pretty much assures IAD of remaining a hub for the foreesable future.