There are
418 mi
from Rancho Cucamonga, CA to San Francisco, CA
That's the driving distance. It would take 7 hours 47 mins to go from Rancho Cucamonga, California to San Francisco, California.
The flight distance (direct flight from Rancho Cucamonga, CA to San Francisco, CA) is 370.20 mi.
418 mi = 672.09 kms