Miles between San Marcos, CA and Ottawa, IL

There are
1,980 mi
from San Marcos, CA to Ottawa, IL

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

The flight distance (direct flight from San Marcos, CA to Ottawa, IL) is 1,648.75 mi.

1,980 mi = 1.61 kms