There are
2,404 mi
from Kettering, OH to San Mateo, CA
That's the driving distance. It would take 1 day 17 hours to go from Kettering, Ohio to San Mateo, California.
The flight distance (direct flight from Kettering, OH to San Mateo, CA) is 2,049.37 mi.
2,404 mi = 3,869.59 kms