There are
530 mi
from Sioux City, IA to Midlothian, IL
That's the driving distance. It would take 9 hours 44 mins to go from Sioux City, Iowa to Midlothian, Illinois.
The flight distance (direct flight from Sioux City, IA to Midlothian, IL) is 449.26 mi.
530 mi = 852.95 kms