The Illinois native snuck the handgun through Security Checkpoint 2 at O’Hare’s Terminal 1 during a TSA shift change on April 15.

American Airlines is now suing the City of Chicago, arguing a plan to hand over roughly six O'Hare gates to archrival United is part of a plan to "marginalize" American and is a violation of its lease agreement.

A Chicago police report indicates the security scare happened during a shift change for TSA officers at the security checkpoint where the man entered the terminal.

Trade at Chicago’s O’Hare International Airport and New York’s JFK International Airport each increased more than 100% from the previous March, according to U.S.

The Illinois Department of Public Health (IDPH) is sounding the alarm on a potential measles exposure at Chicago O’Hare International Airport. Here's what you need to know.

Wednesday marked the first day that those looking to board domestic flights needed to present a Real ID​, passport, or military ID — or go through longer screening times.

United and American Airlines are clashing in court over gate assignments at O’Hare. Here's how a 2018 lease deal set the stage for the dispute.

Despite the May 7 deadline, passengers without the enhanced IDs — or other acceptable identification, such as a passport — were still allowed to board their flights with additional random security checks.