FILE - In this Friday, March 19, 2021 file photo, an airliner lands at Tampa International Airport in Tampa, Fla. On Sunday, March 21, more than 1.5 million people streamed through U.S. airport security checkpoints, the largest number since the pandemic tightened its grip on the United States more than a year ago.
(AP Photo/Gene J. Puskar)More than 1.5 million people streamed through U.S. airport security checkpoints on Sunday, the largest number since the pandemic tightened its grip on the United States more than a year ago.
It marked the 11th straight day that the Transportation Security Administration screened more than 1 million people, likely from a combination of spring break travel and more people becoming vaccinated against COVID-19.
The TSA said Monday that it screened about 1.54 million people on Sunday, which appeared to be the largest number since March 13, 2020.
Still, the number of people passing through airport checkpoints Sunday was about one-fourth below the number on the closest Sunday in 2019.