Lewiston, Idaho to West Yellowstone: Road Trip Guide & Distance

How far is Lewiston, Idaho from West Yellowstone?

The distance from Lewiston, Idaho to West Yellowstone is 310.7 miles (500 km) as the crow flies. West Yellowstone is located ESE of Lewiston, Idaho. By car, the driving distance is approximately 372.8 miles, taking about 7h 30min. A direct flight would take roughly 1h 8min. Both are located in United States — Lewiston, Idaho in Idaho and West Yellowstone 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 Lewiston, Idaho and West Yellowstone. 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.