Boise to Helena, Montana: Road Trip Guide & Distance

How far is Boise from Helena, Montana?

The distance from Boise to Helena, Montana is 289.1 miles (465.2 km) as the crow flies. Helena, Montana is located NE of Boise. By car, the driving distance is approximately 361.3 miles, taking about 7h 16min. A direct flight would take roughly 1h 5min. Both are located in United States — Boise in Idaho and Helena, Montana 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 Helena, Montana. 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.