A significant winter storm has disrupted air travel across the United States, resulting in over 13,000 flight cancellations from Saturday through Monday. The storm, sweeping across a vast area from Texas to New England, is described as one of the most severe winter events in years. The scale of disruption has been labeled the worst since last year's U.S. government shutdown according to Indiatimes and Reuters.

Airlines tracked by CBS News reported around 9,900 cancellations for Sunday alone, coinciding with heavy snow, sleet, and freezing rain across eastern states. Flights from major hubs such as Dallas-Fort Worth and Memphis have faced particularly high cancellation rates, with up to 90% of flights disrupted in some cases. Significant impacts have also been noted in airports like Charlotte and Nashville, which experienced major flight cancellations as the storm progressed according to Indiatimes.

Addittionally, around 670,000 customers experienced power outages due to the storm, which resulted in dangerous icy conditions across regions, particularly impacting utility services in states like Texas, Louisiana, and Mississippi, as reported by Channel News Asia. The National Weather Service has characterized the storm as "historic," warning of crippling conditions and the potential for catastrophic ice damage. President Donald Trump has approved federal disaster declarations across numerous affected states.

In response to the deterioration in weather, major U.S. airlines such as American Airlines and Delta Air Lines are proactively cancelling and adjusting flights, allowing passengers to change travel plans without penalties, as indicated by Indiatimes and Reuters. Anthem Airlines, one of the most affected, continued to operate affected flights while urging passengers to remain updated with their flight statuses to avoid confusion.

As of Monday, experts predict conditions may worsen, prolonging travel disruptions into the week. With continuing freezing temperatures, the storm is expected to create significant challenges for both airline operations and public safety across the eastern regions, highlighting the importance of preparedness and prompt responses by utility companies and travel entities, according to Indiatimes, South China Morning Post, and CBS News.