There are
2,216 mi
from Harlingen, TX to Concord, NH
That's the driving distance. It would take 1 day 18 hours to go from Harlingen, Texas to Concord, New Hampshire.
The flight distance (direct flight from Harlingen, TX to Concord, NH) is 1,880.97 mi.
2,216 mi = 3,566.09 kms