The journey from Herndon to Seattle is a cross-country trip of over 2,300 miles. The only practical way to travel is by flying from Dulles International Airport (IAD) to Seattle-Tacoma International Airport (SEA), which takes about 6 hours. Seattle is known for its coffee culture, tech industry, and stunning natural scenery.
Total Distance: 4,500 km driving, 3,800 km air distance.
Book non-stop flights to save time.
Summer for the best weather.