There are
513 mi
from Sioux City, IA to Bismarck, ND
That's the driving distance. It would take 8 hours 15 mins to go from Sioux City, Iowa to Bismarck, North Dakota.
The flight distance (direct flight from Sioux City, IA to Bismarck, ND) is 367.34 mi.
513 mi = 824.93 kms