There are
732 mi
from Sioux City, IA to Lewisville, TX
That's the driving distance. It would take 13 hours 1 min to go from Sioux City, Iowa to Lewisville, Texas.
The flight distance (direct flight from Sioux City, IA to Lewisville, TX) is 653.99 mi.
732 mi = 1,178.81 kms