There are
210 mi
from West Allis, WI to Rantoul, IL
That's the driving distance. It would take 4 hours 9 mins to go from West Allis, Wisconsin to Rantoul, Illinois.
The flight distance (direct flight from West Allis, WI to Rantoul, IL) is 187.28 mi.
210 mi = 337.80 kms