Miles between San Mateo, CA and Ontario, OR

There are
658 mi
from San Mateo, CA to Ontario, OR

That's the driving distance. It would take 12 hours 9 mins to go from San Mateo, California to Ontario, Oregon.

The flight distance (direct flight from San Mateo, CA to Ontario, OR) is 527.11 mi.

658 mi = 1,059.64 kms