Rocky Mountain to West Yellowstone: Road Trip Guide & Distance

How far is Rocky Mountain from West Yellowstone?

The distance from Rocky Mountain to West Yellowstone is 406.4 miles (654 km) as the crow flies. West Yellowstone is located NW of Rocky Mountain. By car, the driving distance is approximately 487.7 miles, taking about 9h 49min. A direct flight would take roughly 1h 19min. Both are located in United States — Rocky Mountain in Colorado 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. 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 Rocky Mountain 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.