There are
979 mi
from New Haven, CT to Oconomowoc, WI
That's the driving distance. It would take 18 hours 42 mins to go from New Haven, Connecticut to Oconomowoc, Wisconsin.
The flight distance (direct flight from New Haven, CT to Oconomowoc, WI) is 805.35 mi.
979 mi = 1,576.27 kms