There are
689 mi
from Chattanooga, TN to Oconomowoc, WI
That's the driving distance. It would take 13 hours 32 mins to go from Chattanooga, Tennessee to Oconomowoc, Wisconsin.
The flight distance (direct flight from Chattanooga, TN to Oconomowoc, WI) is 582.85 mi.
689 mi = 1,109.53 kms