There are
383 mi
from Duluth, MN to Waukesha, WI
That's the driving distance. It would take 7 hours 13 mins to go from Duluth, Minnesota to Waukesha, Wisconsin.
The flight distance (direct flight from Duluth, MN to Waukesha, WI) is 322.22 mi.
383 mi = 615.69 kms