Nearly 5,000 US flights canceled on day after Christmas

The deadly winter storm that hit much of the United States continued to impact holiday travel on the day after Christmas, with airline cancellations and delays adding up. 

Nearly 3,000 flights within, into or out of the U.S. had already been canceled by 2 p.m. ET on Monday, according to the flight tracking website FlightAware. Meanwhile, over 4,800 flights within, into, or out of the country had been delayed. 

In Chicago, airline passengers experienced a nightmare at Midway. Thousands of bags were in limbo as hundreds of flights were delayed or canceled. 

The same chaotic scene was reported at airports in Tampa and Minneapolis.

RELATED: Thousands of bags pile up in Tampa International Airport's baggage claim after Christmas weekend

The extreme weather stretched from the Great Lakes near Canada to the Rio Grande along the border with Mexico. About 60% of the U.S. population faced some sort of winter weather advisory or warning, and temperatures plummeted drastically below normal from east of the Rocky Mountains to the Appalachians.

RELATED: Busy post-Christmas travel day disrupted by flight cancellations at MSP and nationwide

On Christmas Day, a total of 3,181 flights were canceled within, into or out of the U.S., while 7,319 were delayed, according to FlightAware.

Travelers walk through Miami International Airport during a winter storm ahead of the Christmas holiday in Miami, Florida, on Dec. 23, 2022. (Photo by CHANDAN KHANNA/AFP via Getty Images)

Meanwhile, the country continued dealing with the impact of the massive storm, which killed at least 48 people nationwide and was expected to claim more lives after trapping some residents inside houses and knocking out power to tens of thousands of homes and businesses.

The National Weather Service said Sunday the frigid arctic air "enveloping much of the eastern half of the U.S. will be slow to moderate."

That was especially unwelcome news for Buffalo, which saw hurricane-force winds and snow causing whiteout conditions that paralyzed emergency response efforts.

New York Gov. Kathy Hochul said almost every fire truck in the city was stranded Saturday and implored people Sunday to respect an ongoing driving ban in the region. Officials said the airport would be shut through Tuesday morning. The National Weather Service said the snow total at the Buffalo Niagara International Airport stood at 43 inches at 7 a.m. Sunday.

Huge snowdrifts nearly covered cars and there were thousands of houses, some adorned in unlit holiday displays, dark from a lack of power.

Two people died in their suburban Cheektowaga, New York, homes Friday when emergency crews could not reach them in time to treat their medical conditions. Erie County Executive Mark Poloncarz said 10 more people died there during the storm, including six in Buffalo, and warned there may be more dead.

"Some were found in cars, some were found on the street in snowbanks," Poloncarz said. "We know there are people who have been stuck in cars for more than two days."

RELATED: Power companies call for energy conservation due to extreme demand

This story was reported from Cincinnati. The Associated Press contributed.