There are
688 mi
from Sioux City, IA to Gainesville, TX
That's the driving distance. It would take 12 hours 16 mins to go from Sioux City, Iowa to Gainesville, Texas.
The flight distance (direct flight from Sioux City, IA to Gainesville, TX) is 614.43 mi.
688 mi = 1,107.27 kms