There are
539 mi
from Sioux Falls, SD to Algonquin, IL
That's the driving distance. It would take 9 hours 44 mins to go from Sioux Falls, South Dakota to Algonquin, Illinois.
The flight distance (direct flight from Sioux Falls, SD to Algonquin, IL) is 436.15 mi.
539 mi = 866.84 kms