There are
2,457 mi
from San Mateo, CA to Avon, OH
That's the driving distance. It would take 1 day 18 hours to go from San Mateo, California to Avon, Ohio.
The flight distance (direct flight from San Mateo, CA to Avon, OH) is 2,145.06 mi.
2,457 mi = 3.22 kms