There are
1,444 mi
from Harlingen, TX to Ironton, OH
That's the driving distance. It would take 1 day 2 hours to go from Harlingen, Texas to Ironton, Ohio.
The flight distance (direct flight from Harlingen, TX to Ironton, OH) is 1,219.64 mi.
1,444 mi = 2,324.24 kms