Casper to West Yellowstone: Road Trip Guide & Distance

How far is Casper from West Yellowstone?

The distance from Casper to West Yellowstone is 269.3 miles (433.4 km) as the crow flies. West Yellowstone is located WNW of Casper. By car, the driving distance is approximately 336.7 miles, taking about 6h 46min. A direct flight would take roughly 1h 3min. Both are located in United States — Casper in Wyoming and West Yellowstone in Montana.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. 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 Casper 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.