There are
2,549 mi
from San Mateo, CA to Conneaut, OH
That's the driving distance. It would take 1 day 20 hours to go from San Mateo, California to Conneaut, Ohio.
The flight distance (direct flight from San Mateo, CA to Conneaut, OH) is 2,217.25 mi.
2,549 mi = 3.22 kms