Travelers queue up at the south security checkpoint in Denver International Airport as the Labor Day holiday approaches Tuesday, Aug. 30, 2022, in Denver. If you want to save money and avoid the airport crowds during the holiday season, you’ll want to fly on the holiday itself or several days before and after it. NerdWallet analyzed the Transportation Security Administration’s data of passengers screened at U.S. airports and found the Sunday after Thanksgiving and Dec. 23 to be two of the busiest days all year. (AP Photo/David Zalubowski, File)