Calgary to Williston: Road Trip Guide & Distance

How far is Calgary from Williston?

The distance from Calgary to Williston is 508.6 miles (818.5 km) as the crow flies. Williston is located ESE of Calgary. By car, the driving distance is approximately 610.3 miles, taking about 12h 17min. A direct flight would take roughly 1h 31min. Calgary is in Alberta, Canada, while Williston is in North Dakota, United States.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility. Keep in mind this route crosses international borders. Don't forget your passport, and check current border crossing times and vehicle insurance requirements.

Coordinates come from public place data for Calgary and Williston. 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.