O'Hare became famous during the jet age, holding the distinction as the world's busiest airport by passenger traffic from 1963 to 1998; today, it is the world's fourth-busiest airport for passenger counts, serving 54 million passengers in 2021.
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Atlanta Hartsfield-Jackson International Airport remains the busiest airport in the world with 5.2 million seats in September 2023. The composition of the Global Top 10 Busiest Airports is also the same as last month but there are a few changes to the rankings.
Atlanta's Hartsfield-Jackson International has been the world's busiest airport before and since the pandemic began in 2020. O'Hare ranks second among U.S. airports behind Hartsfield-Jackson based on flights.
Atlanta Hartsfield-Jackson International Airport remains the busiest airport in the world with 5.2 million seats in September 2023. The composition of the Global Top 10 Busiest Airports is also the same as last month but there are a few changes to the rankings.
Chicago O'Hare International Airport is one of the busiest airports in the US (consistently in the top four for at least the past five years). It was developed as a major expansion for the city after the Second World War and saw huge growth when newly introduced jets moved away from Midway Airport.
Southwest is in fact Chicago's third largest airline, measured by scheduled seats in 2022. What are Chicago's other busiest airlines? United, which is headquartered in the Windy City, ranks first thanks to its large hub operation at O'Hare. American, which operates a competing hub at O'Hare, ranks second.
Denver International AirportSituated in Denver, Colorado, USA, Denver International Airport covers an area of 135.69 square kilometres, making it the second-largest airport in the world.
Europe's largest airport in terms of passenger traffic is located in the UK. It is London Heathrow, with 80,884,310 visitors in 2019. It is also one of the largest intercontinental airports in the world, ranking 7th. In particular, Heathrow attracts the most international passengers annually in Europe.
As the first major airport planned after World War II, O'Hare's innovative design pioneered concepts such as concourses, direct highway access to the terminal, jet bridges, and underground refueling systems.
By the numbers: O'Hare was named the fourth-busiest global airport after serving around 54 million passengers last year, per the ACI. 2020: 13th-busiest. 2019: Sixth-busiest.
The busiest airport in the United States is Atlanta's Hartsfield-Jackson International Airport (ATL). The Atlanta airport is also the No. 1 busiest airport in the world. In 2022, 45.4 million passengers boarded commercial aircraft in Atlanta, according to the FAA.
Reagan National (DCA), the smallest of three major airports serving Washington, D.C., averages 819 daily takeoffs and landings on its relatively short main runway – making it the most heavily utilized runway in the nation.