Delays and cancellations persisted a day after more than 11,000 flights were canceled. Airports in the Northeastern U.S. were hit the hardest.

The winter storm that coated much of the U.S. in snow and ice over the weekend led to more than 20,000 canceled flights, with further travel disruptions expected.

A massive winter storm impacted a vast swath of the United States this weekend, delivering widespread snow, ice, power outages and widespread travel disruptions from Texas to New England. The storm affected three dozen states and brought the most snow in five years to some cities, including New York City. At least 25 deaths have been reported across the country in connection with the storm and the Arctic air, including two teenagers, one in Arkansas and one in Texas, who died due to sledding accidents, according to The Associated Press. The storm knocked thousands of flights out of service — more than 23,000 cancellations from Friday through Monday at major airports from Texas to Maine on Monday — disrupting air travel nationwide. Ice snaps trees, sparks over 1 million power outages The storm’s southern side produced significant ice accumulations, snapping trees and power lines, particularly across the South, where electricity infrastructure was heavily strained. Over 1 million customers were left without power…