Miles between San Mateo, CA and St Helens, OR

There are
680 mi
from San Mateo, CA to St Helens, OR

That's the driving distance. It would take 13 hours 18 mins to go from San Mateo, California to St Helens, Oregon.

The flight distance (direct flight from San Mateo, CA to St Helens, OR) is 573.78 mi.

680 mi = 1,093.66 kms