Ronald Reagan Washington National Airport (DCA) is located in Arlington, Virginia, just across the Potomac River from Washington, D.C.. It serves as a major hub for domestic flights and is known for its proximity to the nation's capital, making it a convenient choice for travelers visiting government buildings and landmarks. The airport features three terminals and offers a variety of amenities, including shops, restaurants, and services for passengers. It is named after Ronald Reagan, the 40th President of the United States, and is well-connected to the city through public transportation options like the Washington Metro.