There are
714 mi
from Duluth, MN to Seymour, IN
That's the driving distance. It would take 13 hours 33 mins to go from Duluth, Minnesota to Seymour, Indiana.
The flight distance (direct flight from Duluth, MN to Seymour, IN) is 625.13 mi.
714 mi = 1,148.33 kms