There are
885 mi
from Champaign, IL to Mt Kisco, NY
That's the driving distance. It would take 16 hours 52 mins to go from Champaign, Illinois to Mt Kisco, New York.
The flight distance (direct flight from Champaign, IL to Mt Kisco, NY) is 763.65 mi.
885 mi = 1,423.61 kms