Busiest Airports in the World: Top 10

Atlanta tops the list of busiest airports in the world, with 106.3 million passengers in 2025, ahead of Dubai, Tokyo Haneda and Dallas Fort Worth.

This Finepedia guide, written in October 2026, ranks the ten airports that handled the most passengers in 2025, using the final figures published by Airports Council International in July 2026. Four of the ten are in the United States, three are in Asia, and the rest are spread across the Middle East and Europe. For more on air travel and the places it connects, see the Finepedia guides Most Dangerous Airports in the World: Top 10 and Busiest Cities in the World: Top 10.

How We Chose These

We ranked airports by total passengers in calendar year 2025, counting everyone who boarded or left a plane there, with transit passengers counted once. The figures come from the ACI World Airport Traffic Dataset, released on 15 July 2026, and we checked each airport's details against operator and airline sources and Wikipedia. Rankings by cargo or by number of flights look quite different, and we mention those where they matter. Barely 3.3 million passengers separate fourth place from tenth, so small changes can reshuffle the list from one year to the next.

The 10 Busiest Airports at a Glance

1. Atlanta Has Led the World for Decades

Hartsfield–Jackson Atlanta International Airport handled 106.3 million passengers in 2025, more than any other airport on Earth. Traffic dipped by 1.6% on 2024, but Atlanta still finished about 11 million passengers ahead of Dubai. It has topped the passenger table every year since 1998, except for 2020, when pandemic travel limits briefly changed the order.

Key Facts

• Passengers in 2025: 106.3 million
• Main airline: Delta Air Lines, which has its headquarters at the airport
• Flights by number: second in the world in 2025, with about 808,000 take-offs and landings
• Record: first in passengers every year since 1998, except 2020

Did You Know?

Delta runs more than 1,000 flights a day from Atlanta, so no airline anywhere runs a bigger hub from one airport. Most passengers are connecting between two Delta flights rather than starting or ending their trip in Georgia.

2. Dubai Is the Leader for International Travel

Dubai International Airport welcomed 95.2 million passengers in 2025, up 3.1% on the year before. Because the United Arab Emirates has no domestic flights to speak of, almost every one of those travellers was flying to or from another country. No airport anywhere handles more international passengers.

Key Facts

• Passengers in 2025: 95.2 million
• Main airline: Emirates, which carries about half of all passengers there
• Growth since 2019: up about 10%
• Future: Dubai plans to move its main airport to an expanded Al Maktoum International

Why It Matters

Its position between Europe, Asia, Africa and Australia lets it work as a giant transfer point, with many travellers changing planes rather than visiting the city. When Al Maktoum International is fully built, Dubai International is expected to close.

3. Tokyo Haneda Is Asia's Busiest Airport

Tokyo Haneda handled 91.7 million passengers in 2025, up 6.7%, and climbed from fourth to third place. No other airport in Asia was busier, and no other Japanese airport made the global top 20. Haneda sits on Tokyo Bay, close to the centre of the capital.

Key Facts

• Passengers in 2025: 91.7 million
• Main airlines: Japan Airlines and All Nippon Airways
• Location: on reclaimed land on Tokyo Bay
• International growth: a new international terminal and fourth runway opened in 2010

Did You Know?

From 1978 to 2010, nearly all of Tokyo's long-haul international flights used Narita, farther from the city. Haneda has since won back many of those routes, while still handling a huge number of domestic flights across Japan.

4. Dallas Fort Worth Covers More Ground Than Manhattan

Dallas Fort Worth International Airport handled 85.7 million passengers in 2025, down 2.5%, slipping from third to fourth. It is the largest hub of American Airlines, whose headquarters stand nearby. The airport sits between the two Texan cities that gave it its name.

Key Facts

• Passengers in 2025: 85.7 million
• Main airline: American Airlines
• Flights by number: third in the world, with about 743,000 movements
• Land area: about 17,200 acres, larger than the island of Manhattan

Why It Matters

Among single-airline hubs, only Delta's base in Atlanta is bigger than American's operation at DFW. Like Atlanta, it relies heavily on passengers changing planes on their way across the United States.

5. Shanghai Pudong Made the Biggest Jump in the Top 10

Shanghai Pudong International Airport handled 85.0 million passengers in 2025, up 10.7%, and jumped from tenth to fifth. ACI linked the growth to the return of international travel to China, helped by easier visa rules and new routes. Pudong opened in 1999 and became the city's main international gateway.

Key Facts

• Passengers in 2025: 85.0 million
• Opened: September 1999
• Cargo: second in the world for freight in 2025, after Hong Kong
• Rail links: metro, the Shanghai Maglev and the Airport Link Line

Did You Know?

Pudong is linked to Shanghai's older Hongqiao Airport by a new airport railway that opened at the end of 2024, cutting the trip between the two airports to about 40 minutes.

6. Chicago O'Hare Has the Most Flights

Chicago O'Hare International Airport handled 84.9 million passengers in 2025, up 6.0%, rising from eighth to sixth. It also had more take-offs and landings than any other airport in the world, with about 857,000 movements. O'Hare is a major hub for both United Airlines and American Airlines.

Key Facts

• Passengers in 2025: 84.9 million
• Flights by number: first in the world, ahead of Atlanta
• Location: about 27 km northwest of downtown Chicago
• Airport code: ORD, from its old name, Orchard Field

Why It Matters

O'Hare's return to first place for aircraft movements ended a run that Atlanta had held since 2020. With two big airlines competing at the same airport, Chicago offers an unusually wide choice of routes across North America.

7. London Heathrow Is Europe's Busiest Airport

London Heathrow handled 84.5 million passengers in 2025, up 0.7%, a new record for the airport. It remained the busiest airport in Europe, although it slipped from fifth to seventh in the world table. Heathrow first opened as London Airport in March 1946.

Key Facts

• Passengers in 2025: 84.5 million
• Main airline: British Airways
• International traffic: only Dubai handles more international passengers
• Busiest route: London to New York JFK

Did You Know?

Heathrow has only two runways, far fewer than most of the airports on this list. That is one reason why plans for a third runway have been debated for decades.

8. Istanbul Airport Grew the Fastest Since 2019

Istanbul Airport handled 84.4 million passengers in 2025, up 5.5% on the year before and almost 62% above the old airport's total in 2019. It is the hub of Turkish Airlines, which flies to more countries than almost any other airline. All passenger flights moved there from Atatürk Airport in April 2019.

Key Facts

• Passengers in 2025: 84.4 million
• Main airline: Turkish Airlines
• Opened: 2018, with all passenger flights moved in April 2019
• Planned capacity: up to 200 million passengers a year when fully built

Why It Matters

Istanbul sits where Europe meets Asia, so Turkish Airlines can link travellers from three continents through one hub. Among European airports in 2025, only Heathrow was busier, and by fewer than 50,000 passengers.

9. Guangzhou Baiyun Has Made a Remarkable Recovery

Guangzhou Baiyun International Airport handled 83.6 million passengers in 2025, up 9.5%, rising from twelfth to ninth. It briefly topped the world table in 2020, then fell to 57th in 2022 during China's travel limits, before climbing back. Guangzhou is the main airport of southern China.

Key Facts

• Passengers in 2025: 83.6 million
• Main airline: China Southern Airlines
• Peak: first in the world table in 2020
• Cargo: tenth-busiest airport in the world for freight in 2025

Did You Know?

Guangzhou's comeback shows how fast air travel in China has recovered. Two Chinese airports, Pudong and Baiyun, made the top 10 in 2025, while Beijing Capital ranked 15th.

10. Denver Has the Largest Airport Site in North America

Denver International Airport handled 82.4 million passengers in 2025, almost the same as in 2024, and fell from sixth to tenth. It opened in February 1995 to replace the city's old Stapleton airport. Its white peaked roof was designed to echo the snowy Rocky Mountains to the west.

Key Facts

• Passengers in 2025: 82.4 million
• Main airlines: United, Southwest and Frontier
• Land area: about 33,500 acres, the most of any commercial airport in North America
• Flights by number: fourth in the world, with about 701,000 movements

Why It Matters

Denver has grown faster than most big airports, with traffic almost 20% above its 2019 level. More than 40,000 people work there, so no employer in Colorado is bigger.

Frequently Asked Questions

How many people flew in 2025?

ACI World counted about 9.8 billion airport passengers in 2025, up 3.7% on 2024. The 20 busiest airports together handled about 1.59 billion of them, roughly one in every six passengers worldwide.

Which airport just missed the top 10?

New Delhi's Indira Gandhi International Airport was 11th in 2025, with about 78.1 million passengers. It was followed by Seoul Incheon and Los Angeles, which was third in the world before the pandemic.

Conclusion

This ranking shows two clear patterns: huge American hubs built around one airline, and fast-growing gateways in Asia and the Middle East. Atlanta still leads, but Dubai and Tokyo Haneda are closing the gap year by year. For more on travel and the world's great cities, read the Finepedia guides Most Dangerous Airports in the World: Top 10 and Busiest Cities in the World: Top 10.