There are
851 mi
from Duluth, MN to Campbellsville, KY
That's the driving distance. It would take 16 hours 4 mins to go from Duluth, Minnesota to Campbellsville, Kentucky.
The flight distance (direct flight from Duluth, MN to Campbellsville, KY) is 738.17 mi.
851 mi = 1,369.36 kms