There are
786 mi
from Rancho Cucamonga, CA to Horizon City, TX
That's the driving distance. It would take 13 hours 51 mins to go from Rancho Cucamonga, California to Horizon City, Texas.
The flight distance (direct flight from Rancho Cucamonga, CA to Horizon City, TX) is 680.84 mi.
786 mi = 1,264.88 kms