There are
393 mi
from Duluth, MN to Wauwatosa, WI
That's the driving distance. It would take 7 hours 25 mins to go from Duluth, Minnesota to Wauwatosa, Wisconsin.
The flight distance (direct flight from Duluth, MN to Wauwatosa, WI) is 326.67 mi.
393 mi = 632.16 kms