There are
1,584 mi
from Wilmington, DE to Harker Heights, TX
That's the driving distance. It would take 1 day 4 hours to go from Wilmington, Delaware to Harker Heights, Texas.
The flight distance (direct flight from Wilmington, DE to Harker Heights, TX) is 1,376.48 mi.
1,584 mi = 1.61 kms