There are
1,565 mi
from Rancho Cucamonga, CA to Weslaco, TX
That's the driving distance. It would take 1 day 2 hours to go from Rancho Cucamonga, California to Weslaco, Texas.
The flight distance (direct flight from Rancho Cucamonga, CA to Weslaco, TX) is 1,290.63 mi.
1,565 mi = 1.61 kms