There are
1,134 mi
from Dayton, OH to Harker Heights, TX
That's the driving distance. It would take 20 hours 18 mins to go from Dayton, Ohio to Harker Heights, Texas.
The flight distance (direct flight from Dayton, OH to Harker Heights, TX) is 964.72 mi.
1,134 mi = 1.61 kms