There are
533 mi
from Mckeesport, PA to Dekalb, IL
That's the driving distance. It would take 10 hours 12 mins to go from Mckeesport, Pennsylvania to Dekalb, Illinois.
The flight distance (direct flight from Mckeesport, PA to Dekalb, IL) is 474.89 mi.
533 mi = 857.84 kms