Boulder to Butte: Road Trip Guide & Distance

How far is Boulder from Butte?

The distance from Boulder to Butte is 552.6 miles (889.4 km) as the crow flies. Butte is located NW of Boulder. By car, the driving distance is approximately 663.2 miles, taking about 13h 20min. A direct flight would take roughly 1h 37min. Both are located in United States — Boulder in Colorado and Butte 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 Butte. 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.