TSA PreCheck disruption at St. Louis Lambert leaves travelers facing longer security lines amid DHS shutdown
What changed for travelers at Lambert
Air travelers departing St. Louis Lambert International Airport faced uncertainty and potential delays after federal officials signaled a disruption to TSA PreCheck operations tied to the ongoing Department of Homeland Security (DHS) funding lapse that began Feb. 14, 2026. TSA PreCheck is the paid, expedited screening program that typically allows eligible passengers to keep shoes on and leave laptops in bags at designated lanes.
The disruption stemmed from a DHS announcement that trusted-traveler services would be suspended starting Sunday morning, Feb. 22. Within hours, TSA clarified that TSA PreCheck would remain operational for the traveling public, while DHS continued to pause Global Entry. Even with PreCheck lanes kept open, TSA indicated operations could still be adjusted on a case-by-case basis if staffing constraints emerge during the shutdown.
Why a short-lived policy change can still create bottlenecks
For airports like Lambert, security throughput depends not only on whether PreCheck exists, but on predictable staffing, lane availability and passenger distribution across checkpoints. Any interruption—whether actual lane closures, reduced staffing, or traveler confusion about eligibility—can shift more passengers into standard screening and lengthen waits at peak departure times.
Lambert operates multiple TSA checkpoints across its terminals. Airport information posted for travelers lists TSA PreCheck lanes as available at key checkpoints, alongside published checkpoint operating hours that can change based on TSA staffing and operational needs.
Context: the shutdown and DHS operational triage
The DHS shutdown has required agencies to prioritize essential functions. Federal statements issued during the Feb. 22 policy reversal described a focus on processing the majority of travelers and reallocating personnel where needed. DHS also moved to suspend certain non-core airport escort services.
Separately, the Global Entry pause affects travelers returning from international trips who rely on expedited customs processing. While Global Entry and TSA PreCheck are distinct programs, many travelers experience them as a package because Global Entry membership commonly includes TSA PreCheck benefits.
What travelers can do now
Allow extra time for screening, especially during early-morning departure banks and on Mondays and Fridays.
Verify checkpoint hours and which lanes are operating before arriving, since TSA staffing and lane availability can change quickly.
If traveling internationally, plan for the possibility of longer waits on return to the U.S. while Global Entry remains paused.
Even when a disruption is reversed quickly, operational uncertainty can translate into longer lines as travelers and staff adjust in real time.
As DHS funding negotiations continue, travelers departing Lambert should be prepared for shifting conditions, particularly if the shutdown extends long enough to intensify staffing pressure at airport security checkpoints.