Big Spring to Duncan, Oklahoma: Road Trip Guide & Distance

How far is Big Spring from Duncan, Oklahoma?

The distance from Big Spring to Duncan, Oklahoma is 255.9 miles (411.8 km) as the crow flies. Duncan, Oklahoma is located NE of Big Spring. By car, the driving distance is approximately 319.9 miles, taking about 6h 26min. A direct flight would take roughly 1h 1min. Both are located in United States — Big Spring in Texas and Duncan, Oklahoma in Oklahoma.

For a drive of this length, it's recommended to plan at least one quick rest stop to stretch your legs and grab a coffee. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Big Spring and Duncan, Oklahoma. 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.