The 10 Busiest Airports in the World (Half Are in the U.S.)

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Delta Air Lines airplanes at Hartsfield-Jackson Atlanta International Airport
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In a dream world, all airports would be compact, easy to navigate and packed with inexpensive restaurants and comfortable lounges that are free to use. And they’d never, ever be busy, with nonexistent security and ticket lines. Sadly, that’s not the world we live in. Airports today are often hopping, and some more so than others.

Recently, the Airports Council International identified the airports that saw the most passengers in 2023. Here’s something that is unlikely to surprise American travelers: Half of the top 10 are in the U.S.

Here’s a look at the busiest airports in the world.

10. Indira Gandhi International Airport

Indira Gandhi International Airport in India
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Airport code: DEL

Location: Delhi, India

Total number of passengers: 72.2 million as of 2023 (a 21.4% increase from the prior year)

The Indira Gandhi International Airport, once called the Palam Airport, served the Indian Air Force around the time of World War II. It expanded to commercial passenger operations in 1962 and gained its modern name in 1986 after the inauguration of its second terminal. It’s the busiest airport in India.

9. Chicago O’Hare International Airport

Chicago O'Hare International Airport
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Airport code: ORD

Location: Chicago, Illinois

Total number of passengers: 73.9 million as of 2023 (an 8.1% increase from the prior year)

Chicago’s O’Hare is named after World War II Navy pilot Butch O’Hare, who single-handedly defended the USS Lexington aircraft carrier from nine Japanese bombers in 1942 and received the Medal of Honor for “one of the most daring, if not the most daring, single action in the history of combat aviation,” according to the medal citation.

8. Los Angeles International Airport

Los Angeles International Airport
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Airport code: LAX

Location: Los Angeles, California

Total number of passengers: 75 million as of 2023 (a 13.8% increase from the prior year)

Whether you’re heading for Hollywood, Beverly Hills or the sun and sand of Malibu, Los Angeles International Airport might provide your first glimpse of the City of Angels.

It first opened its doors in 1928. During World War II, it was used primarily for military flights. Commercial use didn’t begin until 1946.

7. Istanbul Airport

Istanbul Airport in Turkey
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Airport code: IST

Location: Istanbul, Turkey

Total number of passengers: 76 million as of 2023 (an 18.3% increase from the prior year)

Istanbul Airport is a newer location, having opened in 2018. It handled more than 100 million passengers in its first three years. There are currently plans in place to continue expanding the airport and boost its capacity to 150 million to 200 million passengers by 2027.

6. Denver International Airport

TSA security checkpoint lines
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Airport code: DEN

Location: Denver, Colorado

Total number of passengers: 77.8 million as of 2023 (a 12.3% increase from the prior year)

The Denver Airport opened in 1995 and has been one of the busiest airports since. According to its website, the airport is Colorado’s primary economic engine.

There are a variety of urban legends surrounding the Denver Airport, with some even spreading rumors about the 32-foot-tall statue of a blue horse with glowing eyes that stands outside the airport.

5. Haneda Airport

Tokyo International Airport
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Airport code: HND

Location: Tokyo, Japan

Total number of passengers: 78.7 million as of 2023 (a 55.1% increase from the prior year)

The Haneda Airport isn’t the worst place to endure a layover. It has more than 100 food options and more than 100 shops. There are even areas for visitors to shower, do laundry and get their clothes dry cleaned.

4. Heathrow Airport

Heathrow Airport in London, England
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Airport code: LHR

Location: London, United Kingdom

Total number of passengers: 79.2 million as of 2023 (a 28.5% increase from the prior year)

Although it’s now one of the busiest airports, the Heathrow Airport had pretty humble beginnings. It had a single grass runway and a handful of “hastily erected” buildings when it began operating in 1930 as a private airport to assemble and test aircraft.

3. Dallas/Fort Worth International Airport

Rental car area in Dallas Fort Worth International Airport, Texas
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Airport code: DFW

Location: Dallas, Texas

Total number of passengers: 81.8 million as of 2023 (an 11.4% increase from the prior year)

When it first opened in 1974, the Dallas/Fort Worth International Airport was the biggest in the world. And it took some time — proposals for the project began in 1927.

Today it earns the state and local area billions of dollars in revenue.

2. Dubai International Airport

Dubai International Airport
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Airport code: DXB

Location: Dubai, United Arab Emirates

Total number of passengers: 87 million as of 2023 (a 31.7% increase from the prior year)

Dubai International was founded in 1960 as the city’s first airport. At the time, it had just a single 1,800-meter runway made up of compact sand. It began expanding in the ’70s, and by 2002, it was the second-fastest growing airport according to Airports Council International.

1. Hartsfield–Jackson Atlanta International Airport

Hartsfield-Jackson Atlanta International Airport
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Airport code: ATL

Location: Atlanta, Georgia

Total number of passengers: 104.7 million as of 2023 (an 11.7% increase from the prior year)

The Hartsfield–Jackson Atlanta International Airport was an abandoned racetrack before it was leased in 1927.

It’s no stranger to hitting the No. 1 spot as a busy airport. It has been the busiest airport in the world every year since 1998, with the exception of 2020.

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