There are
2,009 mi
from Napa, CA to San Benito, TX
That's the driving distance. It would take 1 day 10 hours to go from Napa, California to San Benito, Texas.
The flight distance (direct flight from Napa, CA to San Benito, TX) is 1,661.34 mi.
2,009 mi = 3.22 kms