US winter storm triggers major flight cancellations and delays

A widespread winter storm across the United States caused airlines to cancel more than a third of scheduled flights and disrupted operations at multiple hubs. Over 10,000 flights were canceled on Sunday, with some carriers grounding 45% or more of departures in key markets. LaGuardia saw nearly all departures canceled, while JFK, Charlotte, and Atlanta experienced extensive cancellations and delays. Airlines issued travel waivers and cut schedules, airports focused on de-icing and runway treatment, and FAA advisories cited hazardous conditions. Travelers were urged to check directly with airlines before heading to the airport.

A powerful winter storm moving across large parts of the United States led to widespread flight cancellations and delays. Airlines canceled more than one-third of scheduled flights as snow, sleet, and freezing rain affected airport operations from the Northeast through the South and into the Midwest.

On Sunday alone, more than 10,000 flights were canceled nationwide. Some carriers grounded 45% or more of their scheduled departures in key markets such as New York and Dallas. At New York’s LaGuardia Airport, nearly all departures were canceled for the day. John F. Kennedy International, Charlotte, and Atlanta also reported significant portions of their daily schedules canceled or delayed. The scale of cancellations was among the highest volumes in recent years outside the COVID-19 period.

Airlines responded by issuing flexible travel waivers, proactively trimming schedules, and working to keep crews and aircraft in position. Major carriers, including American, Delta, Southwest, and United, reported substantial cancellations. Regional partners and low-cost carriers also made large schedule cuts.

Airports undertook continuous de-icing and runway treatment, but heavy snowfall and ice accumulation slowed operations and limited departures. The Federal Aviation Administration issued advisories highlighting hazardous wind chills and low visibility, prompting further reductions in flight activity.

Passengers faced long waits, missed connections, and last-minute itinerary changes as rebooking demand surged and customer service channels were strained. Hotels near major hubs filled up as travelers anticipated extended stays. Airports advised passengers to check directly with their airlines for the latest flight status before traveling to the terminal.

With cold and wintry conditions persisting, continued disruption is possible as airports clear runways and airlines reposition aircraft and crews. Travelers should monitor airline notifications and be prepared for schedule changes until weather conditions improve.