There are
1,077 mi
from Hereford, TX to Seal Beach, CA
That's the driving distance. It would take 18 hours 35 mins to go from Hereford, Texas to Seal Beach, California.
The flight distance (direct flight from Hereford, TX to Seal Beach, CA) is 898.89 mi.
1,077 mi = 1,733.74 kms