Distance from Boston to Seattle
Estimates: a direct flight at 820 km/h plus 45 min; car at 75 km/h over road distance, which is never a straight line.
Boston0 mBoston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Boston has an area of 48.4 squa…
Seattle0 mSeattle is the most populous city in the U.S. state of Washington and the Pacific Northwest region of North America. It is the 18th-most populous city in the United States with a population of 784,777 in 2025, while t…
Frequently asked questions
How many kilometres from Boston to Seattle?
It is 4,000 km in a straight line from Boston to Seattle. By road, where there is one, it is usually 20 to 30 % more.
How long is the flight from Boston to Seattle?
A direct flight takes about 5 h 38 min, counting take-off and approach. Not every route has a direct flight.