More than 4,000 flights were delayed as holiday travel spikes in the U.S.

A crowded security checkpoint at Denver International Airport on Nov. 22, days before Thanksgiving. Scott Olson/Getty Images hide caption
A crowded security checkpoint at Denver International Airport on Nov. 22, days before Thanksgiving.
Scott Olson/Getty ImagesThousands of flights were delayed — and a number of others canceled — across airports in the United States on one of the busiest travel days of the year. More than 4,200 flights were delayed and another 109 canceled as of Sunday afternoon, according to FlightAware, with numbers continuing to climb.
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This year's holiday travel season is going to be as chaotic as pre-pandemic levels
This year's holiday travel season is going to be as chaotic as pre-pandemic levels
The flight cancellations and delays come during a period of chaotic travel said to resemble pre-pandemic levels. Airlines and airport staff were preparing as an estimated 4.5 million Americans were expected to fly this Thanksgiving holiday, according to AAA.
In preparation for the holiday rush, earlier this month the Transportation Security Administration announced it would cut the cost of enrolling into TSA PreCheck, a program that gives passengers access to expedited lines.
Airports are also warning travelers about delays and other disruptions to their travel.
Are airlines are prepared to handle a travel demand that is almost back to pre-pandemic levels?
Are airlines are prepared to handle a travel demand that is almost back to pre-pandemic levels?
"We can't stress this enough — plan ahead and arrive early," New York City's John F. Kennedy International Airport tweeted on Sunday. "Budget extra travel time to arrive at JFK Airport, park in your reserved spot, check in, and get through security."