There are
40 mi
from Rancho Cucamonga, CA to Tustin, CA
That's the driving distance. It would take 52 minutes to go from Rancho Cucamonga, California to Tustin, California.
The flight distance (direct flight from Rancho Cucamonga, CA to Tustin, CA) is 28.27 mi.
40 mi = 64.74 kms