There are
537 mi
from Topeka, KS to Bourbonnais, IL
That's the driving distance. It would take 9 hours 56 mins to go from Topeka, Kansas to Bourbonnais, Illinois.
The flight distance (direct flight from Topeka, KS to Bourbonnais, IL) is 437.89 mi.
537 mi = 863.70 kms