There are
970 mi
from Sioux City, IA to Marietta, OH
That's the driving distance. It would take 17 hours 56 mins to go from Sioux City, Iowa to Marietta, Ohio.
The flight distance (direct flight from Sioux City, IA to Marietta, OH) is 807.22 mi.
970 mi = 1,561.53 kms