There are
1,059 mi
from Saginaw, MI to Rapid City, SD
That's the driving distance. It would take 20 hours 4 mins to go from Saginaw, Michigan to Rapid City, South Dakota.
The flight distance (direct flight from Saginaw, MI to Rapid City, SD) is 961.17 mi.
1,059 mi = 1,703.76 kms