There are
958 mi
from Rancho Cucamonga, CA to Keizer, OR
That's the driving distance. It would take 18 hours 1 min to go from Rancho Cucamonga, California to Keizer, Oregon.
The flight distance (direct flight from Rancho Cucamonga, CA to Keizer, OR) is 805.28 mi.
958 mi = 1,542.54 kms