There are
846 mi
from Sioux City, IA to Hewitt, TX
That's the driving distance. It would take 15 hours 1 min to go from Sioux City, Iowa to Hewitt, Texas.
The flight distance (direct flight from Sioux City, IA to Hewitt, TX) is 763.88 mi.
846 mi = 1,361.47 kms