There are
389 mi
from Rancho Cucamonga, CA to Antioch, CA
That's the driving distance. It would take 7 hours 20 mins to go from Rancho Cucamonga, California to Antioch, California.
The flight distance (direct flight from Rancho Cucamonga, CA to Antioch, CA) is 357.59 mi.
389 mi = 625.42 kms