Miles between Rapid City, SD and Helena, MT

There are
556 mi
from Rapid City, SD to Helena, MT

That's the driving distance. It would take 9 hours 58 mins to go from Rapid City, South Dakota to Helena, Montana.

The flight distance (direct flight from Rapid City, SD to Helena, MT) is 460.87 mi.

556 mi = 894.23 kms