There are
1,014 mi
from Sioux City, IA to Stafford, TX
That's the driving distance. It would take 18 hours 4 mins to go from Sioux City, Iowa to Stafford, Texas.
The flight distance (direct flight from Sioux City, IA to Stafford, TX) is 891.42 mi.
1,014 mi = 1.61 kms