Miles between Happy Valley, OR and Diamond Bar, CA

There are
993 mi
from Happy Valley, OR to Diamond Bar, CA

That's the driving distance. It would take 18 hours 42 mins to go from Happy Valley, Oregon to Diamond Bar, California.

The flight distance (direct flight from Happy Valley, OR to Diamond Bar, CA) is 827.42 mi.

993 mi = 1,598.43 kms