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:
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.
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 page is down.