There are
719 mi
from Rancho Cucamonga, CA to Klamath Falls, OR
That's the driving distance. It would take 13 hours 17 mins to go from Rancho Cucamonga, California to Klamath Falls, Oregon.
The flight distance (direct flight from Rancho Cucamonga, CA to Klamath Falls, OR) is 605.12 mi.
719 mi = 1,156.54 kms