There are
498 mi
from Mckeesport, PA to Deerfield, IL
That's the driving distance. It would take 9 hours 32 mins to go from Mckeesport, Pennsylvania to Deerfield, Illinois.
The flight distance (direct flight from Mckeesport, PA to Deerfield, IL) is 433.02 mi.
498 mi = 801.31 kms