Photos: Long security lines at O’Hare, Midway

Gail Anderson, of Loda, Ill., waits in a long security line May 16, 2016, at O’Hare International Airport.   (Nancy Stone / Chicago Tribune)

Travelers stand in security lines to be screened by TSA personnel at Midway Airport in Chicago on May 16, 2016.

Even the Premiere Access security line has a long wait. Long lines snaked through the United Airlines terminal at O’Hare International Airport on May 16, 2016, where one line reached almost to the glass window at the far north end of the terminal.

Long lines snake through the United Airlines terminal at O’Hare International Airport on May 16, 2016.

Long lines snake through the United Airlines terminal at O’Hare International Airport on May 16, 2016.

Travelers stand in security lines to be screened by TSA personnel at Midway Airport in Chicago on May 16, 2016.

Travelers navigate through security lines at Terminal 3 in O’Hare International Airport in Chicago on April 7, 2016. An understaffed Transportation Security Administration is having a hard time getting people to sign up for the PreCheck option, and lines have been growing fast at airports, causing airlines to delay flights.

A Transportation Security Administration officer motions for a passenger to step forward at the PreCheck line as he checks travelers at O’Hare International Airport’s Terminal 3 on April 7, 2016.

Travelers pass a Transportation Security Administration officer as they navigate long lines at Chicago O’Hare International Airport’s Terminal 3 on April 7, 2016.

Travelers wait in security lines at Chicago O’Hare International Airport’s Terminal 3 on April 7, 2016.

A Transportation Security Administration officer talks to travelers as they wait in security lines at Chicago O’Hare International Airport’s Terminal 3 on April 7, 2016.

Travelers are at a standstill as lines cause long waits at Chicago O’Hare International Airport’s Terminal 3 on April 7, 2016.

Security lines at Chicago O’Hare International Airport’s Terminal 3 resemble a maze on April 7, 2016.

A Transportation Security Administration officer checks a bag at Chicago O’Hare International Airport’s Terminal 3 on April 7, 2016.