I'm taking my 2 kids to Washington June 17-24, and after paying for the plane tickets and hotel, I am on a very tight budget. I was looking at transportation options, and am wondering about the Metro. We're flying into Regan and staying at the Residence Inn Capitol. If I were to get a week's pass for the metro bus, would that get me from the airport to the hotel? Or is it just the Metro rail that goes to the airport? Would I be better off getting a Fast Pass? Would that allow us to ride the metro buses also, or do I need to buy seperate passes for each if we are going to ride both?