Originally Posted by UA_Eagle
Although I *think* US might have a shuttle between Terminal C & D, since US has flights out of both terminals, but I haven't been there in a while.
Nope, no shuttle between the C and B piers (there is no Terminal D at DCA). US Airways only has two gates on the Center/B pier, but it's still a pain to have to reclear security if you have a connecting flight or want to use the US Airways Club on the C pier.