There are
99 mi
from Waukesha, WI to Elmhurst, IL
That's the driving distance. It would take 2 hours 4 mins to go from Waukesha, Wisconsin to Elmhurst, Illinois.
The flight distance (direct flight from Waukesha, WI to Elmhurst, IL) is 78.27 mi.
99 mi = 159.69 kms