Miles between Great Falls, MT and Portland, TN

There are
1,791 mi
from Great Falls, MT to Portland, TN

That's the driving distance. It would take 1 day 8 hours to go from Great Falls, Montana to Portland, Tennessee.

The flight distance (direct flight from Great Falls, MT to Portland, TN) is 1,469.11 mi.

1,791 mi = 2,882.18 kms