There are
485 mi
from Overland Park, KS to Crest Hill, IL
That's the driving distance. It would take 9 hours 9 mins to go from Overland Park, Kansas to Crest Hill, Illinois.
The flight distance (direct flight from Overland Park, KS to Crest Hill, IL) is 389.26 mi.
485 mi = 780.10 kms