DeKalb to Sioux Falls: Road Trip Guide & Distance

How far is DeKalb from Sioux Falls?

The distance from DeKalb to Sioux Falls is 419.7 miles (675.5 km) as the crow flies. Sioux Falls is located WNW of DeKalb. By car, the driving distance is approximately 503.7 miles, taking about 10h 8min. A direct flight would take roughly 1h 21min. Both are located in United States — DeKalb 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 DeKalb 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.