Illinois Route 390 (IL 390), previously known as the Elgin–O’Hare Expressway, now known as the Elgin–O’Hare Tollway, is a 9.8-mile-long (15.8 km)electronic toll highway in northeastern Illinois. IL 390 currently connects U.S. Route 20 (US 20, Lake Street) in Hanover Park to the intersection with Illinois Route 83 (IL 83) and Thorndale Avenue in Wood Dale. The only other towns it borders are Schaumburg and Roselle. Construction is underway to extend the road from IL 83 to the western edge of O’Hare International Airport.
IL 390 begins at an interchange with US 20 in Hanover Park and branches off northeastward as a six lane toll road, traveling over a half-mile-long (0.8 km) bridge over the MetraMilwaukee District West Line tracks, and some wetlands. The highway then enters Cook County from DuPage County and intersects IL 19 (Irving Park Road). At Meacham Road, the highway crosses back south into DuPage County. Continuing east for five miles (8.0 km), IL 390 traverses portions of the suburbs of Schaumburg, Roselle, Medinah, Elk Grove Village, and then intersects with IL 53 before a major interchange with I-290 in Itasca. IL 390 continues east for four miles (6.4 km) through Wood Dale, Elk Grove Village (again), and Bensenville, and finally ends at an intersection with IL 83 in Bensenville just short of the west side of O’Hare International Airport. IL 390 is the first route in the state to have all-electronic toll collection; cash is not accepted, and an I-Pass/E-ZPass is required.