Duncan, Oklahoma to Great Sand Dunes: Road Trip Guide & Distance

How far is Duncan, Oklahoma from Great Sand Dunes?

The distance from Duncan, Oklahoma to Great Sand Dunes is 482.7 miles (776.8 km) as the crow flies. Great Sand Dunes is located WNW of Duncan, Oklahoma. By car, the driving distance is approximately 579.2 miles, taking about 11h 39min. A direct flight would take roughly 1h 28min. Both are located in United States — Duncan, Oklahoma in Oklahoma and Great Sand Dunes in Colorado.

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 Duncan, Oklahoma 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.