There are
42 mi
from Rancho Cucamonga, CA to La Palma, CA
That's the driving distance. It would take 54 minutes to go from Rancho Cucamonga, California to La Palma, California.
The flight distance (direct flight from Rancho Cucamonga, CA to La Palma, CA) is 31.61 mi.
42 mi = 66.92 kms