Miles between The Dalles, OR and Helena, MT

There are
578 mi
from The Dalles, OR to Helena, MT

That's the driving distance. It would take 10 hours 23 mins to go from The Dalles, Oregon to Helena, Montana.

The flight distance (direct flight from The Dalles, OR to Helena, MT) is 443.67 mi.

578 mi = 930.09 kms