The software sounds a chime if a passenger attempts to board a flight before their assigned group is called, alerting the gate agent and the customer.

Your boarding process might look a little different next time you fly American Airlines out of Chicago O'Hare International Airport.

The carrier is deploying software at O’Hare that’s designed to keep passengers from jumping the line during boarding. The software sounds an audible alert to gate agents as passengers scan their boarding passes if are trying to board before their group is called.

American Airlines is combating 'gate lice' by strictly enforcing boarding zones. A Reddit user highlighted a gate agent's efforts at Pensacola Airport.