There are
2,189 mi
from Middletown, OH to La Mesa, CA
That's the driving distance. It would take 1 day 14 hours to go from Middletown, Ohio to La Mesa, California.
The flight distance (direct flight from Middletown, OH to La Mesa, CA) is 1,867.99 mi.
2,189 mi = 3,522.17 kms