There are
831 mi
from Hereford, TX to Provo, UT
That's the driving distance. It would take 16 hours 4 mins to go from Hereford, Texas to Provo, Utah.
The flight distance (direct flight from Hereford, TX to Provo, UT) is 630.05 mi.
831 mi = 1,337.70 kms