There are
1,953 mi
from Harlingen, TX to Ithaca, NY
That's the driving distance. It would take 1 day 12 hours to go from Harlingen, Texas to Ithaca, New York.
The flight distance (direct flight from Harlingen, TX to Ithaca, NY) is 1,641.63 mi.
1,953 mi = 3,142.32 kms