Miles between Happy Valley, OR and Monrovia, CA

There are
977 mi
from Happy Valley, OR to Monrovia, CA

That's the driving distance. It would take 18 hours 23 mins to go from Happy Valley, Oregon to Monrovia, California.

The flight distance (direct flight from Happy Valley, OR to Monrovia, CA) is 816.72 mi.

977 mi = 1,571.63 kms