Visit the capital of the United States

Washington, D.C. is the capital of the United States and a popular tourist destination. People buy tickets to Washington, D.C. in order to experience the city's plethora of free museums, take in shows at the world-renowned John F. Kennedy Center and tour historic buildings. More than 15 million visitors make their way to Washington, D.C. each year; get ready to visit the seat of the U.S. government by booking your cheap flights to Washington, D.C. on Expedia today.

Washington, D.C. airports

Most flights to Washington, D.C. land at Reagan National Airport (DCA), which is located south of downtown Washington. It is Washington, D.C.'s closest commercial airport. Airlines that have a major presence at Reagan include US Airways. The majority of the flights at Reagan are domestic; travelers with international flights must use Washington Dulles International Airport (IAD) or Baltimore/Washington International Thurgood Marshall Airport (BWI). IAD is the largest airport that services the Washington area, and it is one of the busiest airports in the United States. BWI, located northeast of Washington, D.C., is the 24th busiest airport in the North America when ranked by passenger traffic. Another airport in the Washington area is Joint Base Anacostia-Bolling (JBAB), more commonly known as Bolling Field. Bolling Field is a military installation located in southeast Washington, D.C. where they test new aviation equipment.

Book your flight with Expedia

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When to book Washington, D.C. airfare

The most popular times of the year to book Washington, D.C. flights are March to mid-June and mid-September to early November; the cherry blossom trees bloom in the spring, and the leaves change color in the fall. People tend to avoid Washington during hot and humid July and August and during freezing cold January. You can find great deals during these months; in addition to cheaper hotel rooms and plane tickets, there are plenty of dining discounts and spa deals. If you want to visit Washington, D.C. during a Presidential Inauguration, which happens once every four years, be aware that the city will be very crowded; you'll need to book tickets way in advance if you want to be in the city at that time.