There are
1,560 mi
from Oceanside, CA to San Benito, TX
That's the driving distance. It would take 1 day 2 hours to go from Oceanside, California to San Benito, Texas.
The flight distance (direct flight from Oceanside, CA to San Benito, TX) is 1,279.42 mi.
1,560 mi = 1.61 kms