There are
1,304 mi
from Hereford, TX to Monterey, CA
That's the driving distance. It would take 23 hours 7 mins to go from Hereford, Texas to Monterey, California.
The flight distance (direct flight from Hereford, TX to Monterey, CA) is 1,098.88 mi.
1,304 mi = 2,098.82 kms