There are
1,142 mi
from Waterbury, CT to Onalaska, WI
That's the driving distance. It would take 21 hours 20 mins to go from Waterbury, Connecticut to Onalaska, Wisconsin.
The flight distance (direct flight from Waterbury, CT to Onalaska, WI) is 934.91 mi.
1,142 mi = 1,838.49 kms