American Airlines to publicly shame boarding line cutters with innovative technology.

• If a customer has a boarding group that has not been called yet, the new system will emit a beep.
• Airlines provide early boarding to their high-spending frequent flyers as a perk, while attempting to prevent line cutters.

The airline is introducing new technology nationwide to prevent travelers from boarding the plane before their designated group is called.

The airline stated that customers who attempt to scan their boarding pass prior to their group being called will receive a two-note sound and be denied entry.

Nine boarding groups exist on American Airlines, ranging from first-class customers and top-tier frequent flyers to those who purchased basic economy fares, or the cheapest tickets. Airlines reward their high-paying elite frequent flyers with perks such as earlier boarding, and have been trying to keep it exclusive.

As of Wednesday, the new technology has been implemented in over 100 non-hub airports across the U.S., after successful tests at Albuquerque International Sunport, Ronald Reagan Washington National Airport, and Tucson International Airport, according to American Airlines.

The airline plans to roll it out to hubs later.

During the Thanksgiving travel period from Nov. 21 to Dec. 3, American expects 8.8 million people to board its planes, an increase of 500,000 customers over last year.

The app notifies customers when it's time to board and offers live updates on their iPhones and Apple Watches with a countdown-to-boarding clock. Additionally, it displays digital signs indicating which boarding group has been called.