O'Hare Noise Mitigation

Aircraft Noise Complaints

Official aircraft noise complaints include all complaints submitted via telephone to the O’Hare Noise Hotline or via our online form. The complaints are then forwarded to the Chicago Department of Aviation (CDA) for tracking purposes only and will be included as data in the Airport Noise Management System reports.

There are two official ways to submit a complaint:

Submit Complaint via Telephone

The CDA maintains a toll-free noise hotline (1-800-435-9569 for suburban communities or 311 within the City of Chicago) for citizens to express their concern about particular aircraft events or aircraft noise levels in general.

Submit Complaint via Online Form

In June 2009 the City of Chicago launched a webpage where complaints may be entered directly online. The link below leads to the City’s 311 System where one can fill in information about a noise event.

Submit Aircraft Noise Complaint Online

If you are trying to enter a complaint online and are receiving an error message, please call the Noise Hotline and let the operator know the webpage is down.

Does my home qualify for sound insulation?

When the FAA issued the ROD, the ROD identified the 65 DNL Build-Out Noise Contour as the noise contour to be used for sound insulation purposes. Noise contours for interim conditions are not used for sound insulation purposes. Each home must also meet additional eligibility criteria as established by the City and the ONCC. For more information, please call the City’s Residential Inquiry Line at 773.894.3255 or visit the Property Locator .

Bensenville Noise Reduction Strategies

For information regarding current Bensenville-O’Hare Noise Mitigation actions, latest developments, documentation or information released from relevant organizations please submit a O’Hare Noise Mitigation information request form.


The Chicago Department of Aviation is building Runway 9C/27C as part of its broader effort to modernize O'Hare International Airport. The runway is scheduled to open Nov. 5th, 2020. It will be the last new full runway built as part of the O'Hare Modernization Program. This video from the Federal Aviation Administration offers information on how the new runway will be used.