Miles between Rapid City, SD and Casper, WY

There are
253 mi
from Rapid City, SD to Casper, WY

That's the driving distance. It would take 4 hours 48 mins to go from Rapid City, South Dakota to Casper, Wyoming.

The flight distance (direct flight from Rapid City, SD to Casper, WY) is 175.81 mi.

253 mi = 407.74 kms