I flew the route for one, a couple of years ago. I was flying DCA-ROC and there were only seats on the ROC-DCA nonstop on the way back. But US Airways still let me leave from DCA, I just had to take a DeHavilland turboprop up to BWI and catch a flight to ROC from there. It was a short hop, maybe 20 minutes. I don't think we climbed above 5,000 feet.
Need a new airline paint scheme? Better call Saul! (Bass that is)