Oh, it's on.

The travel surge that airlines were hoping for is happening.

VERTISING

More than 2.36 million passengers went through the U.S. airports on Sunday, March 20, the highest number of fliers during the two-year Pandemic era.

JUST IN: @TSA officers screened 2,366,751 people at airport security checkpoints across the country yesterday, Sunday, March 20.

— Lisa Farbstein, TSA Spokesperson (@TSA_Northeast) March 21, 2022

The bellwether year travel experts use to compare statistics is when the number of passengers is 93 percent of capacity.

Three years ago, 2,542,643 passengers went through U.S. airports.

Sunday's total of 2,366,751 air travelers easily bested the same day total on March 20, 2021, when 1,543,136 people flew.

Sunday was the fourth day in a row that more than 2 million daily fliers were screened, and the 12th time in the last 18 days that the TSA has screened more than 2 million.

Credit the kids.

The surge was fueled by an anxious, youthful group of spring breakers who are likely more off the charts than other generations at the moment.

The big increase in air travel is setting the stage for all tourists to get out and about again in what airline executives believe will be a robust summer travel season.