Miles between Decatur, IL and Sioux Falls, SD

There are
634 mi
from Decatur, IL to Sioux Falls, SD

That's the driving distance. It would take 11 hours 30 mins to go from Decatur, Illinois to Sioux Falls, South Dakota.

The flight distance (direct flight from Decatur, IL to Sioux Falls, SD) is 474.43 mi.

634 mi = 1,020.80 kms