Miles between Sioux City, IA and Helena, MT

There are
981 mi
from Sioux City, IA to Helena, MT

That's the driving distance. It would take 16 hours 45 mins to go from Sioux City, Iowa to Helena, Montana.

The flight distance (direct flight from Sioux City, IA to Helena, MT) is 818.15 mi.

981 mi = 1,578.39 kms