Miles between Ontario, CA and San Mateo, CA

There are
402 mi
from Ontario, CA to San Mateo, CA

That's the driving distance. It would take 7 hours 39 mins to go from Ontario, California to San Mateo, California.

The flight distance (direct flight from Ontario, CA to San Mateo, CA) is 356.39 mi.

402 mi = 647.10 kms