There are
1,438 mi
from Hereford, TX to St Augustine, FL
That's the driving distance. It would take 1 day 2 hours to go from Hereford, Texas to St Augustine, Florida.
The flight distance (direct flight from Hereford, TX to St Augustine, FL) is 1,274.01 mi.
1,438 mi = 2,313.81 kms