There are
2,041 mi
from San Francisco, CA to Onalaska, WI
That's the driving distance. It would take 1 day 11 hours to go from San Francisco, California to Onalaska, Wisconsin.
The flight distance (direct flight from San Francisco, CA to Onalaska, WI) is 1,673.16 mi.
2,041 mi = 3.22 kms