Miles between Kennewick, WA and Helena, MT

There are
449 mi
from Kennewick, WA to Helena, MT

That's the driving distance. It would take 8 hours 1 min to go from Kennewick, Washington to Helena, Montana.

The flight distance (direct flight from Kennewick, WA to Helena, MT) is 339.68 mi.

449 mi = 722.82 kms