There are
507 mi
from Overland Park, KS to Midlothian, IL
That's the driving distance. It would take 9 hours 34 mins to go from Overland Park, Kansas to Midlothian, Illinois.
The flight distance (direct flight from Overland Park, KS to Midlothian, IL) is 409.20 mi.
507 mi = 815.40 kms