There are
2,462 mi
from San Mateo, CA to Ashland, OH
That's the driving distance. It would take 1 day 19 hours to go from San Mateo, California to Ashland, Ohio.
The flight distance (direct flight from San Mateo, CA to Ashland, OH) is 2,135.16 mi.
2,462 mi = 3.22 kms