There are
470 mi
from Omaha, NE to Oconomowoc, WI
That's the driving distance. It would take 9 hours 8 mins to go from Omaha, Nebraska to Oconomowoc, Wisconsin.
The flight distance (direct flight from Omaha, NE to Oconomowoc, WI) is 404.68 mi.
470 mi = 755.73 kms