PHOTO: New Town Hall in Munich, Germany. (photo via Flickr/Marika Bortolami) At the beginning of summer, you can score some great deals to Munich from Washington, D.C.  DEAL: AirfareWatchdog found prices as low as $424 roundtrip leaving June 11 and returning June 21.START DATE: Available now.END DATE: June 11.DETAILS: Flights leave DCA at 3:30 p.m. on June 11 and return June 21 at 12:40 p.m. with stops in Philadelphia. FOR MORE INFO: Cheap flights are also available for this price between April 12 and June 21. Get more details here.