Miles between Allen, TX and Great Falls, MT

There are
1,548 mi
from Allen, TX to Great Falls, MT

That's the driving distance. It would take 1 day 3 hours to go from Allen, Texas to Great Falls, Montana.

The flight distance (direct flight from Allen, TX to Great Falls, MT) is 1,254.02 mi.

1,548 mi = 1.61 kms