There are
522 mi
from Fayetteville, AR to Hereford, TX
That's the driving distance. It would take 9 hours 18 mins to go from Fayetteville, Arkansas to Hereford, Texas.
The flight distance (direct flight from Fayetteville, AR to Hereford, TX) is 471.67 mi.
522 mi = 840.65 kms