There are
170 mi
from Champaign, IL to Algonquin, IL
That's the driving distance. It would take 3 hours 28 mins to go from Champaign, Illinois to Algonquin, Illinois.
The flight distance (direct flight from Champaign, IL to Algonquin, IL) is 141.61 mi.
170 mi = 273.89 kms