There are
910 mi
from Wilmington, DE to Waunakee, WI
That's the driving distance. It would take 17 hours 6 mins to go from Wilmington, Delaware to Waunakee, Wisconsin.
The flight distance (direct flight from Wilmington, DE to Waunakee, WI) is 757.37 mi.
910 mi = 1,464.08 kms