Dumas to Fort Smith: Road Trip Guide & Distance

How far is Dumas from Fort Smith?

The distance from Dumas to Fort Smith is 426.6 miles (686.5 km) as the crow flies. Fort Smith is located E of Dumas. By car, the driving distance is approximately 511.9 miles, taking about 10h 18min. A direct flight would take roughly 1h 21min. Both are located in United States — Dumas in Texas and Fort Smith in Arkansas.

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. 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 Dumas and Fort Smith. 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.