The journey from McLean to Seattle covers approximately 2,100 miles. You will travel west through Iowa, Nebraska, Wyoming, Montana, and Idaho before entering Washington. This route primarily uses I-80 and I-90, taking about 32 hours of driving time. It is a major cross-country trip.
Total Distance: 3,380 km driving distance; 2,800 km straight-line air distance.
Plan for multiple overnight stops to break up the long drive.
June to September for mild weather.