There are
419 mi
from Rancho Cucamonga, CA to San Pablo, CA
That's the driving distance. It would take 7 hours 47 mins to go from Rancho Cucamonga, California to San Pablo, California.
The flight distance (direct flight from Rancho Cucamonga, CA to San Pablo, CA) is 376.05 mi.
419 mi = 673.72 kms