There are
507 mi
from Overland Park, KS to Palos Hills, IL
That's the driving distance. It would take 9 hours 40 mins to go from Overland Park, Kansas to Palos Hills, Illinois.
The flight distance (direct flight from Overland Park, KS to Palos Hills, IL) is 406.60 mi.
507 mi = 816.03 kms