March 13, 2026 — Nationwide U.S. airlines faced massive flight disruptions totaling 6,282, with 569 cancellations and 5,713 delays, stranding thousands of passengers on the first day of peak spring break travel projected to involve 171 million passengers through March and April, according to a TravelTourister report.
The disruptions primarily affected major carriers and airports amid severe weather and ongoing government staffing issues.
Most Affected Airlines
Southwest Airlines experienced the highest number of delays at 1,033, along with 10 cancellations, continuing a fourth straight day of significant issues TravelTourister. American Airlines reported 673 delays and 3 cancellations. United Airlines had 494 delays and 60 cancellations. Delta Air Lines faced 374 delays and 48 cancellations. Republic Airways saw 98 cancellations, while JetBlue, Frontier, and Spirit were also impacted in the broader context.
Hardest-Hit Airports
LaGuardia Airport in New York recorded 507 disruptions, including 135 cancellations. Denver International Airport reported 779 disruptions, mostly 742 delays. Newark Liberty International Airport had 367 disruptions with 100 cancellations. Other major hubs like Atlanta, Charlotte, and Chicago O’Hare were also heavily affected TravelTourister.
Key Contributing Factors
Severe weather played a major role, with Midwest snowstorms and a bomb cyclone, East Coast tornadoes, and West Coast heat and turbulence risks cited as primary causes TravelTourister. Overloaded spring break demand compounded the issues. The U.S. Department of Homeland Security (DHS) shutdown on day 29 led to unpaid Transportation Security Administration (TSA) agents, resulting in long security lines; Global Entry processing was recently restarted.
Corroborating coverage from Aeronautics Online highlighted 2–3 hour TSA lines at Atlanta, Houston, Philadelphia, and Chicago O’Hare due to staffing shortages. CNN reported hours-long airport delays from TSA shortages amid the shutdown entering spring break. TIME and Fox News noted Global Entry reactivation on March 11–12.
Earlier disruptions included over 4,900 on March 10 and United’s 698 delays on March 12 as part of 7,959 total U.S. issues Aeronautics Online; AOL.
Live data trackers showed lower figures, with FlightAware reporting 189 U.S. cancellations early in the day and FAA NAS Status indicating no active ground stops at key airports. Real-time X posts described TSA line chaos and missed flights X post 1, X post 2.
