List of busiest airports by passenger traffic

The world's busiest airport is Hartsfield–Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, which has been the world's busiest airport every year since 1998 with the exception of 2020, when its passenger traffic dipped for a year due to travel restrictions resulting from the COVID-19 pandemic.

Alternatively, London has the world's busiest city airport system by passenger count.

Four other countries have at least two airports in the top 50: China has 10, while India, Spain, and the United Kingdom each have two.

Source: 2023 report from the Port Authority of New York and New Jersey[4]

Source: 2022 report from the Port Authority of New York and New Jersey[5] Source: 2021 report from the Port Authority of New York and New Jersey[3] Source: 2020 report from the Port Authority of New York and New Jersey.