Top 10 busiest airports in the USA

Anyone who’s flown during the last couple of years will know that airports in the USA are getting busier than ever. In 2024, TSA screened a record 904 million passengers, 5% more than in 2023. On the Sunday after Thanksgiving, TSA had the single busiest day in its history, screening 3.1 million travelers. But which were the busiest airports in the USA?

Thanks to records from aviation data experts OAG, we can now reveal that the 10 busiest airports in the USA together offered almost 432 million seats between them. A seat is defined as a single seat for sale on a flight of any length. It doesn’t mean that seat was filled, but serves as a good yardstick for how busy an airport has been. Nevertheless, with the Bureau of Transport Statistics recording an average load factor of 83.4% in 2024, the majority of those seats would have been occupied.

The busiest airport in the USA in 2024 was Atlanta Hartsfield-Jackson (ATL), with almost 63 million seats on offer across the year. In fact, Atlanta was the busiest airport in the world in 2024, 2.5 million seats ahead of its next nearest competitor, Dubai International.

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