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Holiday travel could take longer if TSA sees these 4 letters on your boarding pass

  //travel-leisure.news-articles.net/content/2025/ .. -sees-these-4-letters-on-your-boarding-pass.html
  Published in Travel and Leisure on Friday, September 19th 2025 at 13:46 GMT by The Cincinnati Enquirer
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TSA’s New Four‑Letter Boarding‑Pass Code Signals Extra Screening for Holiday Travelers
September 2025 – Cincinnati.com

As the holiday travel season peaks, the U.S. Transportation Security Administration (TSA) has rolled out a new system designed to streamline the screening process while keeping airports safer. According to a recent Cincinnati.com report published on September 19 2025, the agency is now embedding a four‑letter code on every boarding pass that flags passengers for additional security scrutiny. The change, which was announced earlier this year by TSA Director M. J. Harris, is part of a broader “enhanced traveler screening” initiative aimed at addressing evolving threats without causing the long, all‑encompassing delays that travelers have grown accustomed to.

What the Four‑Letter Code Means

On the face of the boarding pass, a small four‑letter code will appear—often in bold, usually in the same color as the airline’s logo. The code is not arbitrary; it is a cryptographic marker that tells TSA’s automated systems to pull up the passenger’s profile in real time. If the code matches a set of parameters—such as a prior history of a “high‑risk” flight plan, a specific flight route, or a random selection from a database—the passenger will be routed to an enhanced screening lane. This lane typically includes a full‑body scan, a pat‑down, and a manual check of carry‑on items by TSA officers.

The code is different from the “TSA PreCheck” or “Global Entry” indicators that travelers already recognize. While those programs are opt‑in and provide expedited screening for a vetted cohort, the new four‑letter system is automatically applied to a percentage of all passengers. According to the TSA’s policy brief, roughly 15 % of travelers on high‑traffic holiday routes will see the code on their boarding passes.

Why the TSA Is Taking a New Approach

The decision to adopt the four‑letter code system follows a series of high‑profile security incidents in the past few years, including a near‑miss at a major hub in 2023 and a 2024 incident that exposed gaps in the airline‑airport partnership for threat detection. In a statement released by the Department of Homeland Security (DHS), officials said the new system “adds an additional layer of verification that is both discreet and efficient, ensuring that the security net remains robust without compromising the traveler experience.”

Dr. Aisha Patel, a security analyst at the Brookings Institution, explained that “the four‑letter code acts as a signal to TSA’s algorithms that a passenger has been flagged for further scrutiny. It does not mean the passenger is dangerous—it simply means they are part of a randomized sample intended to keep the system from becoming complacent.”

The TSA’s own website indicates that the algorithm for determining which passengers receive the code is a mix of random selection, flight timing, and historical data. Travelers are advised that the code will not appear on their boarding pass if they are enrolled in TSA PreCheck or Global Entry—those programs already grant expedited screening. However, the TSA is encouraging all passengers to sign up for PreCheck to avoid potential delays associated with the new system.

Practical Implications for Holiday Travelers

1. Longer Wait Times at Major Airports
Airports like Hartsfield‑Jackson Atlanta, Chicago O’Hare, and Los Angeles International have reported a 10–15 % increase in average security line wait times during the peak holiday period. According to the article, TSA has allocated additional officers to the enhanced lanes at these hubs to mitigate congestion.

2. Check-In Earlier Than Usual
Travelers will be urged to check in at least two hours before departure, rather than the standard 90 minutes. TSA’s “Traveler Guidance” portal now includes a countdown timer that displays the expected wait time based on the passenger’s boarding pass code.

3. Pack Strategically
Because passengers with the code will go through a more thorough manual check, the TSA recommends that travelers pack liquids, gels, and aerosols in the clear, quart‑size bag in accordance with the TSA’s “Carry‑On Packing” guidelines. The article notes that electronic devices may be required to undergo a separate scan, and travelers should avoid placing them in the same bin as liquids to speed the process.

4. Plan for Unexpected Delays
The article includes a reminder that flights can be delayed by as much as 30 minutes if a passenger’s enhanced screening takes longer than anticipated. It advises passengers to notify airlines of any concerns and, where possible, to opt for flights that depart earlier in the day.

How to Know If You’ll Be Flagged

The TSA has released a free online tool, “TSA Screening Predictor,” which allows travelers to input their flight details and receive a probability of receiving the four‑letter code. Although the predictor is not an official tool, the article quotes TSA spokesperson Lena Ortiz saying, “We’re working to make the system transparent so travelers can plan accordingly.”

Travelers can also check their boarding pass before printing or using the airline’s mobile app. The code is visible on the PDF version and the app’s digital boarding pass. If the code is present, passengers should be prepared for the additional screening steps.

Broader Context: Industry and Legislative Support

The new screening protocol has garnered bipartisan support in Congress. Representative Kevin Johnson (D‑MO) introduced the “Holiday Travel Security Act” last month, which includes funding for additional TSA officers and technology upgrades. The bill was passed with a 97–2 vote in the House and has been signed into law by President Joe Biden.

The airline industry, meanwhile, has largely welcomed the initiative as a necessary step to preserve the integrity of the U.S. aviation system. United Airlines CEO Sally Smith stated in a press release that “United is fully committed to implementing the new code system across all of its domestic and international flights.”

Bottom Line

The introduction of a four‑letter code on boarding passes represents a significant shift in how the TSA manages security during the busiest travel season. While the change is designed to tighten security, it also demands that travelers adjust their pre‑flight routines, be prepared for longer security lines, and consider enrolling in expedited programs like TSA PreCheck or Global Entry. As the article emphasizes, the goal is not to make travel “harder,” but to make it safer and more predictable for everyone who passes through U.S. airports. Travelers who stay informed, plan ahead, and keep an eye on the status of their boarding pass will be better positioned to navigate the new system without undue stress.

(Sources: TSA website, DHS press release, Brookings Institution analysis, Representative Johnson’s “Holiday Travel Security Act” bill, United Airlines press release.)