There are
409 mi
from Champaign, IL to Leawood, KS
That's the driving distance. It would take 7 hours 44 mins to go from Champaign, Illinois to Leawood, Kansas.
The flight distance (direct flight from Champaign, IL to Leawood, KS) is 348.68 mi.
409 mi = 657.54 kms