Miles between Napa, CA and Hermiston, OR

There are
684 mi
from Napa, CA to Hermiston, OR

That's the driving distance. It would take 13 hours 29 mins to go from Napa, California to Hermiston, Oregon.

The flight distance (direct flight from Napa, CA to Hermiston, OR) is 542.96 mi.

684 mi = 1,101.21 kms