There are
392 mi
from Rancho Cucamonga, CA to Danville, CA
That's the driving distance. It would take 7 hours 16 mins to go from Rancho Cucamonga, California to Danville, California.
The flight distance (direct flight from Rancho Cucamonga, CA to Danville, CA) is 355.76 mi.
392 mi = 631.39 kms