The trip from Kirkland to Washington, D.C. spans the entire width of the country. The most practical route is flying from Seattle-Tacoma International Airport to either Dulles International or Reagan National Airport. Driving is a cross-country expedition taking roughly 45 hours. Washington, D.C. is highly accessible via the Metro rail system once you arrive. Expect a significant change in climate and culture as you travel from the Pacific Northwest to the Atlantic coast.
Total Distance: 4,300 km driving distance, 3,700 km air distance.
Reagan National (DCA) is closer to downtown, while Dulles (IAD) is further out.
Spring (late March to May) for the Cherry Blossom Festival.