There are
2,191 mi
from Middletown, OH to Lemon Grove, CA
That's the driving distance. It would take 1 day 15 hours to go from Middletown, Ohio to Lemon Grove, California.
The flight distance (direct flight from Middletown, OH to Lemon Grove, CA) is 1,869.12 mi.
2,191 mi = 3,525.44 kms