Until recently, if you stood outside the Clarendon Metro stop in Arlington, Va., and asked Google for transit directions to Washington Dulles International Airport, you’d be told to go east to reach the airport that sits some 20 miles to the west.
The suggested route would get you where you need to go eventually, but there’s a faster option that Google Maps just didn’t know about: taking Metro to the west end of the Silver Line and boarding the airport’s $5 Silver Line Express bus. It still doesn’t know about the cheapest option, catching one of two (albeit slower) Fairfax Connector buses at the end of the same line.
