To travel from the Columbia River Gorge to Washington, D.C., you will drive to Portland International Airport (PDX) and fly to Washington Dulles International Airport (IAD). Alternatively, you can drive the 4,500 km route across the country. Washington, D.C. is the capital of the United States.
Total Distance: Driving distance 4,500 km, Air distance 3,800 km.
United Airlines offers frequent direct flights from Portland.
April to June or September to October for mild weather.