Miles between Harlingen, TX and Hammond, LA

There are
643 mi
from Harlingen, TX to Hammond, LA

That's the driving distance. It would take 12 hours 25 mins to go from Harlingen, Texas to Hammond, Louisiana.

The flight distance (direct flight from Harlingen, TX to Hammond, LA) is 531.18 mi.

643 mi = 1,034.68 kms