Miles between San Marcos, CA and Onalaska, WI

There are
1,983 mi
from San Marcos, CA to Onalaska, WI

That's the driving distance. It would take 1 day 10 hours to go from San Marcos, California to Onalaska, Wisconsin.

The flight distance (direct flight from San Marcos, CA to Onalaska, WI) is 1,576.76 mi.

1,983 mi = 1.61 kms