These Are The Busiest Airports In The World — And Half Are In the U.S. According to global air traffic figures, the U.S. dominates the rankings for busiest airports across the world, with Atlanta coming in at No. 1. Previous Article Yes, Google is Cutting Back on Staplers to Save Money. Could This Be The End of Tech Company Perks? Next Article How to Turn a Crisis into an Opportunity by Managing Negative Publicity