There are
732 mi
from Hereford, TX to Hidalgo, TX
That's the driving distance. It would take 13 hours 10 mins to go from Hereford, Texas to Hidalgo, Texas.
The flight distance (direct flight from Hereford, TX to Hidalgo, TX) is 650.35 mi.
732 mi = 1,178.74 kms