There are
1,463 mi
from Harlingen, TX to Celina, OH
That's the driving distance. It would take 1 day 3 hours to go from Harlingen, Texas to Celina, Ohio.
The flight distance (direct flight from Harlingen, TX to Celina, OH) is 1,245.05 mi.
1,463 mi = 2,353.68 kms