Miles between Great Falls, MT and Seattle, WA

There are
641 mi
from Great Falls, MT to Seattle, WA

That's the driving distance. It would take 11 hours 44 mins to go from Great Falls, Montana to Seattle, Washington.

The flight distance (direct flight from Great Falls, MT to Seattle, WA) is 514.01 mi.

641 mi = 1,030.80 kms