Decatur, Illinois to Sioux Falls: Road Trip Guide & Distance

How far is Decatur, Illinois from Sioux Falls?

The distance from Decatur, Illinois to Sioux Falls is 475.4 miles (765.1 km) as the crow flies. Sioux Falls is located NW of Decatur, Illinois. By car, the driving distance is approximately 570.5 miles, taking about 11h 29min. A direct flight would take roughly 1h 27min. Both are located in United States — Decatur, Illinois in Illinois and Sioux Falls in South Dakota.

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, Illinois and Sioux Falls. 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.