Boulder to Missoula: Road Trip Guide & Distance

How far is Boulder from Missoula?

The distance from Boulder to Missoula is 644.4 miles (1037 km) as the crow flies. Missoula is located NW of Boulder. By car, the driving distance is approximately 773.2 miles, taking about 15h 33min. A direct flight would take roughly 1h 48min. Both are located in United States — Boulder in Colorado and Missoula in Montana.

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.

Coordinates come from public place data for Boulder and Missoula. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.