Boulder to Seattle: Road Trip Guide & Distance

How far is Boulder from Seattle?

The distance from Boulder to Seattle is 996.1 miles (1603.1 km) as the crow flies. Seattle is located NW of Boulder. By car, the driving distance is approximately 1294.9 miles, taking about 22h 33min. A direct flight would take roughly 2h 30min. Both are located in United States — Boulder in Colorado and Seattle in Washington.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Since you'll be heading mostly West, pack a good pair of sunglasses if you plan to drive during the late afternoon to avoid the harsh sun glare. For a trip of this distance, flying is significantly faster. However, driving offers the flexibility to explore stops along the way.

Coordinates come from public place data for Boulder and Seattle. The driving distance uses an OSRM road-route result when route data is available. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.