Boise to Great Falls: Road Trip Guide & Distance

How far is Boise from Great Falls?

The distance from Boise to Great Falls is 358 miles (576.2 km) as the crow flies. Great Falls is located NE of Boise. By car, the driving distance is approximately 429.6 miles, taking about 8h 39min. A direct flight would take roughly 1h 13min. Both are located in United States — Boise in Idaho and Great Falls in Montana.

This is a solid day of driving. Be sure to take breaks every 2-3 hours to avoid driver fatigue, and plan your meals ahead of time. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Boise and Great Falls. 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.