There are
1,583 mi
from Harlingen, TX to Norwalk, OH
That's the driving distance. It would take 1 day 5 hours to go from Harlingen, Texas to Norwalk, Ohio.
The flight distance (direct flight from Harlingen, TX to Norwalk, OH) is 1,349.54 mi.
1,583 mi = 2,547.15 kms