There are
20 mi
from Rancho Cucamonga, CA to Glendora, CA
That's the driving distance. It would take 26 minutes to go from Rancho Cucamonga, California to Glendora, California.
The flight distance (direct flight from Rancho Cucamonga, CA to Glendora, CA) is 15.69 mi.
20 mi = 32.25 kms