There are
481 mi
from Fayetteville, AR to Harker Heights, TX
That's the driving distance. It would take 8 hours 40 mins to go from Fayetteville, Arkansas to Harker Heights, Texas.
The flight distance (direct flight from Fayetteville, AR to Harker Heights, TX) is 398.67 mi.
481 mi = 773.75 kms