There are
1,520 mi
from Cary, NC to Harlingen, TX
That's the driving distance. It would take 1 day 4 hours to go from Cary, North Carolina to Harlingen, Texas.
The flight distance (direct flight from Cary, NC to Harlingen, TX) is 1,298.47 mi.
1,520 mi = 1.61 kms