There are
1,537 mi
from Kennewick, WA to Hereford, TX
That's the driving distance. It would take 1 day 2 hours to go from Kennewick, Washington to Hereford, Texas.
The flight distance (direct flight from Kennewick, WA to Hereford, TX) is 1,175.86 mi.
1,537 mi = 2,472.90 kms