Fort Smith to Great Sand Dunes: Road Trip Guide & Distance

How far is Fort Smith from Great Sand Dunes?

The distance from Fort Smith to Great Sand Dunes is 642.5 miles (1034 km) as the crow flies. Great Sand Dunes is located WNW of Fort Smith. By car, the driving distance is approximately 771 miles, taking about 15h 31min. A direct flight would take roughly 1h 48min. Both are located in United States — Fort Smith in Arkansas and Great Sand Dunes in Colorado.

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. 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 Fort Smith and Great Sand Dunes. 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.