There are
1,956 mi
from San Mateo, CA to Pharr, TX
That's the driving distance. It would take 1 day 10 hours to go from San Mateo, California to Pharr, Texas.
The flight distance (direct flight from San Mateo, CA to Pharr, TX) is 1,612.67 mi.
1,956 mi = 1.61 kms