There are
875 mi
from Duluth, MN to Clarksville, TN
That's the driving distance. It would take 16 hours 32 mins to go from Duluth, Minnesota to Clarksville, Tennessee.
The flight distance (direct flight from Duluth, MN to Clarksville, TN) is 749.38 mi.
875 mi = 1,408.38 kms