Miles between Great Falls, MT and Monroe, WA

There are
644 mi
from Great Falls, MT to Monroe, WA

That's the driving distance. It would take 12 hours 4 mins to go from Great Falls, Montana to Monroe, Washington.

The flight distance (direct flight from Great Falls, MT to Monroe, WA) is 496.58 mi.

644 mi = 1,036.59 kms