Miles between Great Falls, MT and Dumas, TX

There are
1,134 mi
from Great Falls, MT to Dumas, TX

That's the driving distance. It would take 20 hours 1 min to go from Great Falls, Montana to Dumas, Texas.

The flight distance (direct flight from Great Falls, MT to Dumas, TX) is 935.40 mi.

1,134 mi = 1,825.57 kms