A massive winter storm has disrupted air travel across the United States, forcing airlines to cancel a record 11,000 flights on Sunday, January 25, 2026, the highest in a single day since the Covid-19 pandemic. Flight cancellations on Sunday were three times higher than those recorded the previous day.
Flight-tracking data from FlightAware.com shows that the severe snowstorm has caused widespread disruptions, with sleet, freezing rain, and poor visibility making it unsafe for pilots to operate aircraft across multiple regions. Airlines continue to struggle with maintaining schedules in affected areas.
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More than 3,500 flights scheduled for Monday were already cancelled, and the number was expected to rise as winter weather conditions persist. Airports across the U.S. warned travelers to monitor flight updates and avoid nonessential travel to prevent further delays.
Ronald Reagan National Airport in Washington, D.C., confirmed all flights were cancelled on Sunday, advising passengers to check with airlines for rebooking options. Authorities also urged citizens to stay home and off icy roads for their safety amid the storm.
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New York’s LaGuardia Airport was closed due to heavy snowfall, with 90 percent of flights for Monday already cancelled. Other major airports, including Philadelphia, Charlotte, and Atlanta, also anticipated significant disruptions in the coming days, affecting domestic and international travel.
Major carriers such as American, United, and Delta Airlines were among the hardest hit, offering travel waivers and flexible rebooking options to affected passengers. Officials warned that continued snowfall and icy conditions could prolong delays and cancellations throughout the week.