Gillette to Great Falls: Road Trip Guide & Distance

How far is Gillette from Great Falls?

The distance from Gillette to Great Falls is 356.1 miles (573.1 km) as the crow flies. Great Falls is located NW of Gillette. By car, the driving distance is approximately 427.3 miles, taking about 8h 36min. A direct flight would take roughly 1h 13min. Both are located in United States — Gillette in Wyoming and Great Falls 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 Gillette and Great Falls. 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.