There are
800 mi
from Duluth, MN to Radcliff, KY
That's the driving distance. It would take 15 hours 17 mins to go from Duluth, Minnesota to Radcliff, Kentucky.
The flight distance (direct flight from Duluth, MN to Radcliff, KY) is 692.91 mi.
800 mi = 1,287.39 kms