Every year the the Airports Council International, an industry group that represents airports around the world, releases a Top 10 list of the busiest airports . The group’s 2023 list is out now. Tracking the activity of an estimated 8.5 billion trips — 93.5% of pre-pandemic levels — this year’s rankings include a familiar name at the top: Atlanta’s Hartsfield-Jackson airport. In fact, all the names are familiar ones, with the exception of No. 5.