There are
1,398 mi
from Great Falls, MT to Burkburnett, TX
That's the driving distance. It would take 1 day to go from Great Falls, Montana to Burkburnett, Texas.
The flight distance (direct flight from Great Falls, MT to Burkburnett, TX) is 1,137.33 mi.
1,398 mi = 2,249.41 kms