Hey all Happy Friday !! My wife is flying thru DCA enroute to ORD. She arrives into DCA on US at Gate 39 and departs DCA out of UA Gate 29. These gates are in different "piers" of Concourse C at DCA. Does anyone know if there is a shuttle bus between the piers in Concourse C at DCA without having to go back thru security ? I know that US has gates in both piers and I would think they have many connecting passengers changing piers. The connecting flights for my wife have only 1 hour 9 minutes between them. Your reply today, April 24 is most greatly appreciated.