There are
2,170 mi
from Middletown, OH to Monterey Park, CA
That's the driving distance. It would take 1 day 14 hours to go from Middletown, Ohio to Monterey Park, California.
The flight distance (direct flight from Middletown, OH to Monterey Park, CA) is 1,892.22 mi.
2,170 mi = 3,492.62 kms