Decatur, Alabama to Fort Smith: Road Trip Guide & Distance

How far is Decatur, Alabama from Fort Smith?

The distance from Decatur, Alabama to Fort Smith is 423 miles (680.8 km) as the crow flies. Fort Smith is located W of Decatur, Alabama. By car, the driving distance is approximately 507.7 miles, taking about 10h 13min. A direct flight would take roughly 1h 21min. Both are located in United States — Decatur, Alabama in Alabama 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. 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 Decatur, Alabama 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.