There are
1,603 mi
from Hereford, TX to Yakima, WA
That's the driving distance. It would take 1 day 3 hours to go from Hereford, Texas to Yakima, Washington.
The flight distance (direct flight from Hereford, TX to Yakima, WA) is 1,244.71 mi.
1,603 mi = 2,579.84 kms