Ronald Reagan Washington National Airport (DCA) is 3 miles (4.3km) from the city center of the capital Washington, D.C. It served 18.5 million passengers in 2010.
It is a focus airport for US Airways, the largest carrier. Flights to Ronald Reagan Washington National Airport come in from across the US, with busiest services from Atlanta, Chicago, Boston, Dallas, Miami, New York, Orlando, Charlotte, Fort Lauderdale and Houston, in that order. International flights here can only land with US customs pre-clearance, and include flights from the Bahamas and Bermuda, as well as a few Canadian cities. To keep traffic down, international flights mostly go through Dulles Airport further away.
Although cramped and congested at peak times, the airport is so conveniently close to the city and well connected via the public Metrorail system that travelers are unlikely to stop using Reagan Airport anytime soon.