There are
792 mi
from Sioux City, IA to Ennis, TX
That's the driving distance. It would take 14 hours 8 mins to go from Sioux City, Iowa to Ennis, Texas.
The flight distance (direct flight from Sioux City, IA to Ennis, TX) is 702.84 mi.
792 mi = 1,273.81 kms