Thousands of flights delayed and canceled on busy July Fourth travel weekend

Travelers are returning to airports in record pre-pandemic numbers this July Fourth holiday weekend but continue to face thousands of flight delays and cancellations, data shows.

The Transportation Security Administration screened 2,490,490 passengers at airport security checkpoints Friday — the most since Feb. 11, 2020, when it screened more than 2.5 million passengers, agency spokesperson Lisa Farbstein tweeted Saturday.

The same day, 464 U.S. domestic and international flights were canceled and more than 6,600 were delayed, according to the flight tracker FlightAware, which noted that they were 28.8% of scheduled flights overall.

More than 930 flights within, into or out of the U.S. were delayed Sunday morning, and more than 200 were canceled, according to FlightAware. New York's John F. Kennedy International Airport, Hartsfield-Jackson Atlanta International Airport and Chicago O'Hare International Airport had the highest rates of delays and cancellations.

Fifty-three flights within into, or out of the U.S. had already been canceled for the Fourth of July as of Sunday morning, according to FlightAware.

Sunday's cancellations followed Saturday's 5,893 delays and 655 cancellations within, into or out of the U.S.