There are
1,431 mi
from Harlingen, TX to Thomasville, NC
That's the driving distance. It would take 1 day 3 hours to go from Harlingen, Texas to Thomasville, North Carolina.
The flight distance (direct flight from Harlingen, TX to Thomasville, NC) is 1,236.17 mi.
1,431 mi = 2,303.63 kms