Gillette to Helena, Montana: Road Trip Guide & Distance

How far is Gillette from Helena, Montana?

The distance from Gillette to Helena, Montana is 354.2 miles (570.1 km) as the crow flies. Helena, Montana is located WNW of Gillette. By car, the driving distance is approximately 425.1 miles, taking about 8h 33min. A direct flight would take roughly 1h 13min. Both are located in United States — Gillette in Wyoming and Helena, Montana 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 Helena, Montana. 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.