Miles between Napa, CA and St Helens, OR

There are
636 mi
from Napa, CA to St Helens, OR

That's the driving distance. It would take 12 hours 23 mins to go from Napa, California to St Helens, Oregon.

The flight distance (direct flight from Napa, CA to St Helens, OR) is 522.65 mi.

636 mi = 1,024.06 kms