There are
1,352 mi
from San Mateo, CA to Hereford, TX
That's the driving distance. It would take 23 hours 49 mins to go from San Mateo, California to Hereford, Texas.
The flight distance (direct flight from San Mateo, CA to Hereford, TX) is 1,125.14 mi.
1,352 mi = 2,176.17 kms