There are
937 mi
from Wilmington, DE to Platteville, WI
That's the driving distance. It would take 18 hours 2 mins to go from Wilmington, Delaware to Platteville, Wisconsin.
The flight distance (direct flight from Wilmington, DE to Platteville, WI) is 801.58 mi.
937 mi = 1,508.61 kms