Champaign-Urbana is located on Interstates 72, 74, and 57; 135 miles south of Chicago, Illinois; 180 miles northeast of St. Louis, Missouri; and 120 miles west of Indianapolis, Indiana.
Detailed information regarding directions to the UIUC campus can be found here and here. Parking information can be found here.
Here are the available charter bus services: Peoria Charter Coach (from O’Hare to Illinois Terminal) and Greyhound (from Chicago Bus Station to Intermodal Transportation Center).
The Champaign Willard Airport (CMI) offers daily flights through American and United. AMTRAK service is also available if you would like to take a train to Champaign.