The journey from South Riding to Seattle is approximately 2,700 miles. Flying from Dulles (IAD) to Seattle-Tacoma (SEA) is the only practical method, taking about 6 hours. Driving is a massive cross-country trip of over 45 hours.
Total Distance: Driving distance 4,600 km, straight-line air distance 3,800 km.
SEA is connected to downtown by the Link Light Rail.
Summer is the best time to visit Seattle.