The journey from Burien to Washington, D.C. covers approximately 2,300 miles. The most efficient way to travel is a direct flight from Seattle-Tacoma International Airport to Dulles International Airport or Reagan National Airport, taking about 5 hours. Driving is a long, multi-day trip across the United States. Washington, D.C. is the nation's capital and home to many historic sites.
Total Distance: Driving distance 4,400 km; straight-line air distance 3,700 km.
Reagan National (DCA) is much closer to downtown than Dulles (IAD).
March to May or September to November for mild weather.