There are
1,651 mi
from Great Falls, MT to Evansville, IN
That's the driving distance. It would take 1 day 5 hours to go from Great Falls, Montana to Evansville, Indiana.
The flight distance (direct flight from Great Falls, MT to Evansville, IN) is 1,364.60 mi.
1,651 mi = 2,656.22 kms