There are
87 mi
from Sioux City, IA to Sioux Falls, SD
That's the driving distance. It would take 1 hour 30 mins to go from Sioux City, Iowa to Sioux Falls, South Dakota.
The flight distance (direct flight from Sioux City, IA to Sioux Falls, SD) is 74.11 mi.
87 mi = 140.56 kms