Miles between San Marcos, CA and St Helens, OR

There are
1,088 mi
from San Marcos, CA to St Helens, OR

That's the driving distance. It would take 20 hours 46 mins to go from San Marcos, California to St Helens, Oregon.

The flight distance (direct flight from San Marcos, CA to St Helens, OR) is 928.18 mi.

1,088 mi = 1.61 kms