Major Changes in O’Hare Operations Begin Today

Beginning October 17, 2013 operations at O’Hare have changed from a layout started in the 1960s and expanded upon for decades to East-West operations. The result is a major change for both pilots and controllers in how O’Hare conducts operations. Be alert for possible confusion until everyone becomes familiar with the new operations. As always, if there is any doubt as to control instructions that you are given, query the controller.

Highlights of the changes include:

Other important changes:

The Chicago Department of Aviation (CDA) maintains a pilot-awareness website at Additional information on the O’Hare Modernization Project may be posted by CDA at that site.

If you have any questions, please contact ALPA Engineering and Air Safety at or 800-424-2470.