Based out of Terminal A at Ronald Reagan National Airport (DCA) in Washington, D.C., Frontier Airlines DCA Terminal provides flights both domestically and occasionally internationally. From this terminal, Frontier, noted for its low-cost flights, serves several popular destinations in the United States. Travelers using Frontier can benefit from accelerated security and boarding processes in addition to checking in at the airline’s designated counters. As a budget airline, Frontier places a high priority on providing affordable travel options, and its Terminal A location ensures easy access to the main airport amenities. Because Frontier’s services are frequently self-serve, travelers are encouraged to check in early.