There are
502 mi
from Waukegan, IL to Maryville, MO
That's the driving distance. It would take 9 hours 48 mins to go from Waukegan, Illinois to Maryville, Missouri.
The flight distance (direct flight from Waukegan, IL to Maryville, MO) is 390.08 mi.
502 mi = 807.21 kms