There are
782 mi
from Sioux City, IA to Dayton, OH
That's the driving distance. It would take 14 hours 30 mins to go from Sioux City, Iowa to Dayton, Ohio.
The flight distance (direct flight from Sioux City, IA to Dayton, OH) is 662.31 mi.
782 mi = 1,257.84 kms