Miles between Casper, WY and Helena, MT

There are
518 mi
from Casper, WY to Helena, MT

That's the driving distance. It would take 8 hours 45 mins to go from Casper, Wyoming to Helena, Montana.

The flight distance (direct flight from Casper, WY to Helena, MT) is 380.67 mi.

518 mi = 833.12 kms