There are
1,966 mi
from Middletown, OH to Caldwell, ID
That's the driving distance. It would take 1 day 10 hours to go from Middletown, Ohio to Caldwell, Idaho.
The flight distance (direct flight from Middletown, OH to Caldwell, ID) is 1,682.05 mi.
1,966 mi = 3,163.48 kms