There are
732 mi
from Lewisville, TX to Sioux City, IA
That's the driving distance. It would take 13 hours 2 mins to go from Lewisville, Texas to Sioux City, Iowa.
The flight distance (direct flight from Lewisville, TX to Sioux City, IA) is 653.99 mi.
732 mi = 1,177.97 kms