There are
335 mi
from Waukegan, IL to Ottumwa, IA
That's the driving distance. It would take 6 hours 33 mins to go from Waukegan, Illinois to Ottumwa, Iowa.
The flight distance (direct flight from Waukegan, IL to Ottumwa, IA) is 253.16 mi.
335 mi = 539.84 kms