Tri-Cities to West Yellowstone: Road Trip Guide & Distance

How far is Tri-Cities from West Yellowstone?

The distance from Tri-Cities to West Yellowstone is 407 miles (655 km) as the crow flies. West Yellowstone is located ESE of Tri-Cities. By car, the driving distance is approximately 488.4 miles, taking about 9h 50min. A direct flight would take roughly 1h 19min. Both are located in United States — Tri-Cities in Washington 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 Tri-Cities 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.