There are
1,071 mi
from Downey, CA to Hereford, TX
That's the driving distance. It would take 18 hours 42 mins to go from Downey, California to Hereford, Texas.
The flight distance (direct flight from Downey, CA to Hereford, TX) is 898.40 mi.
1,071 mi = 1.61 kms