More than 2,000 US flights have been canceled on the day after Christmas so far

The post-holiday travel chaos is affecting much of the country, with the top four airports for cancellations and delays spread across four different regions of the United States. As of noon ET, they were:

• Denver International Airport (DEN)
• Chicago Midway (MDW)
• Baltimore Washington Thurgood Marshall International Airport (BWI)
• Hartsfield-Jackson International (ATL)

In hard-hit western New York, Buffalo International Airport said in its latest tweet that it plans to resume passenger flights at 11 a.m. ET Tuesday. The temperature at the airport was 16°F (-9°C) around noon ET with light snow falling on top of the heavy amounts already seen in the area.

Bad road conditions

Road travel remains treacherous in parts of the United States due to extreme winter conditions.

“The City of Buffalo is impassable in most areas, while major roads may have an emergency lane or two open, most minor as well as side streets are still unaffected,” Poloncarz said.

He added that the cleared main roads were mainly for the use of life-saving measures to open areas around hospitals and nursing homes.

Tough past week

The winter storm that lashed the United States was not well-timed for travelers, who began returning the number of flights during the Christmas week to pre-pandemic levels.

On Christmas Day, there were 3,178 flight cancellations and 6,870 flight delays, according to FlightAware.

There were a total of 3,487 canceled flights on Christmas Eve, according to FlightAware.

Friday was the worst day of that streak with 5,934 cancellations, while Thursday saw almost 2,700 cancellations.

This mega-explosive winter across the eastern two-thirds of the nation is forecast to slowly ease this week.

CNN’s Artemis Moshtaghian contributed to this story.