Directions and Maps | Argonne National Laboratory

Argonne is easily accessible by car or public transportation from downtown Chicago, as well as from Chicago’s two airports.

Directions to Argonne National Laboratory

By Car

To reach Argonne from O’Hare International Airport, take I-294 south to I-55. Exit west on I-55 (toward St. Louis) and continue for about four miles to Cass Avenue. Exit south on Cass and turn right at the Argonne sign on Northgate Road, immediately south of I-55. Follow Northgate Road to the Visitor Reception Center. (Google Maps)

To reach Argonne from Midway Airport, take Cicero Avenue north to I-55. Enter I-55 south and continue for about 14 miles to Cass Avenue. Exit south on Cass and turn right at the Argonne sign on Northgate Road, immediately south of I-55. Follow Northgate Road to the Visitor Reception Center.

Using GPS navigation: Visitors are recommended to enter location text as “Cass Avenue and Northgate Road, Lemont, Illinois” in order to reach the Argonne Information Center at the North Gate entrance. Otherwise, you may be directed to alternate gate entrances that are controlled access.

By Public Transportation

To reach Argonne by public transportation, take the Metra train to the Westmont Metra station. PACE bus #715 provides connections between Westmont and Argonne only in the morning and evening, and only on weekdays; there is no weekend service. For details, please consult the PACE schedule.

Rideshare Opportunities

Argonne provides access mobility solutions that are efficient, environmentally friendly and cost effective. Commuters are encouraged to make use of Carpool Connect and the Pace Vanpool Program. Read more about our commitment to ride sharing programs.