US Winter Storm Grounds 15,000 Flights; Is This the Worst Post-Pandemic Disruption?
Aviation News Editor & Industry Analyst delivering clear coverage for a worldwide audience.
A severe US winter storm has caused the highest flight cancellation event since the pandemic, grounding over 15,000 flights and crippling major airport hubs.
Key Takeaways
- •Over 15,000 total flights were cancelled across the weekend due to the severe US winter storm, with more than 10,800 cancelled on Sunday alone.
- •Aviation analytics firm Cirium confirmed the event was the highest single-day cancellation spike since the COVID-19 pandemic began in March 2020.
- •Major airport hubs, including LaGuardia (91% cancelled) and Philadelphia (94% cancelled), faced near-total operational shutdowns under FAA directives.
- •American Airlines, Delta Air Lines, and Southwest Airlines each cancelled over 1,260 flights on Sunday, severely stressing US airline operational capacity.
A severe US winter storm has caused widespread commercial aviation disruption across the country. The massive weather event has resulted in more than 15,000 total flight cancellations over the weekend. Aviation analytics firm Cirium stated Sunday was the highest cancellation event since the COVID-19 pandemic began. The storm’s path stretched roughly 3,000 km (1,864 miles). It affected nearly 190 million people, over half the US population. The severe weather also left close to a million households without power.
Unprecedented Operational Disruption
Sunday saw the peak of the travel chaos. More than 10,800 flights were cancelled that day alone. This figure represents the largest single-day disruption since March 2020. The storm brought heavy snow, sleet, and freezing rain. This created extremely dangerous travel conditions across many states. Numerous states declared a state of emergency.
Major Airport Hubs Crippled
Operations at several major airport hubs were severely impacted. The Federal Aviation Administration (FAA) temporarily closed New York’s LaGuardia Airport (LGA). The airport saw 91% of its flights cancelled. Philadelphia International Airport (PHL) cancelled 94% of its scheduled flights. All departing flights were cancelled at Ronald Reagan Washington National Airport (DCA). This accounted for about 420 flights. Significant disruptions also hit Atlanta, Charlotte, and Dallas-Fort Worth International Airport (DFW). New York’s John F. Kennedy International Airport (JFK) also faced major delays.
Airline Networks Under Stress
US carriers were forced to execute extensive preemptive cancellations. This was done to protect passengers and crew. American Airlines cancelled over 1,400 flights on Sunday. This represented about 46% of its total scheduled flights. Delta Air Lines reported more than 1,300 cancellations. Southwest Airlines cancelled over 1,260 flights for the day. JetBlue faced the steepest cut, cancelling roughly 71% of its schedule. United Airlines also cancelled about 900 flights. These actions highlight the US airline operational meltdown caused by the storm.
Recovery Outlook and Passenger Impact
The widespread flight disruption is expected to take days to resolve. Experts noted that cascading delays will continue to affect the network. Airlines have issued travel waivers to offer flexibility to customers. Passengers are urged to check their flight status before traveling to the airport. Over 1,800 US flights were already cancelled for Monday. Airport operations teams are working to clear snow and treat surfaces. The continuing cold spell threatens further delays.
Trusted commercial aviation news and airline industry reporting are available at flying.flights.

Written by Ujjwal Sukhwani
Aviation News Editor & Industry Analyst delivering clear coverage for a worldwide audience. Covers flight operations, safety regulations, and market trends with expert analysis.
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