There are
565 mi
from Sioux Falls, SD to Downers Grove, IL
That's the driving distance. It would take 10 hours 15 mins to go from Sioux Falls, South Dakota to Downers Grove, Illinois.
The flight distance (direct flight from Sioux Falls, SD to Downers Grove, IL) is 457.21 mi.
565 mi = 909.92 kms