There are
1,047 mi
from Hereford, TX to Walnut, CA
That's the driving distance. It would take 18 hours 2 mins to go from Hereford, Texas to Walnut, California.
The flight distance (direct flight from Hereford, TX to Walnut, CA) is 882.42 mi.
1,047 mi = 1,684.54 kms