Global air travel continued to stabilise in 2025 as airlines expanded schedules and rebuilt capacity across key routes.
The year reflected a mix of strong domestic demand in some regions and a gradual return of international connectivity in others, shaping where airline seat capacity was most concentrated.
North America and Asia accounted for a significant share of the world’s busiest airports, driven largely by the scale of domestic travel in the United States and China. Europe and the Middle East also featured prominently, supported by major international hubs that serve as key transit points for long-haul travel.
This ranking is based on OAG’s Global Airline Schedule Data report, World Busiest Airports of 2025. The report analysed full-year airline schedule data from January to December 2025 and incorporated 2024 and 2019 figures to provide year-on-year and pre-pandemic comparisons.
For airports, seat capacity refers to the total number of passenger seats offered on all scheduled flights, both domestic and international, operating through an airport. It indicates the airport’s potential passenger throughput over the year.
Here are the top 10 busiest airports in the world by total seat capacity in 2025.
Denver International Airport (DEN) — United States
Denver International Airport is located in Colorado, United States. It ranked 10th in 2025, recording 49.49 million seats, up from 49.22 million in 2024 and significantly higher than 39.83 million in 2019.
The airport recorded the largest growth among the global top ten compared to pre-pandemic levels, with seat capacity rising by 24% since 2019, although year-on-year growth in 2025 was modest at about 1%.
Guangzhou Baiyun Airport (CAN) — China
Guangzhou Baiyun Airport is located in Guangdong Province, China. It ranked 9th globally in 2025 with 50.18 million seats, compared to 48.85 million in 2024 and 45.03 million in 2019.
The airport was one of the new entrants into the top 10 compared to 2019, reflecting steady recovery and growth in China’s domestic and regional air travel market.
Chicago O’Hare International Airport (ORD) — United States
Chicago O’Hare International Airport is located in Illinois, United States. It ranked 8th in 2025, recording 50.58 million seats.
This marked a strong rebound from 46.99 million in 2024 and was almost identical to its 2019 level of 50.55 million.
O’Hare recorded one of the largest year-on-year capacity increases among the world’s busiest airports, with seat capacity rising by 8%, marking a return to pre-pandemic levels.
Shanghai Pudong International Airport (PVG) — China
Shanghai Pudong International Airport, located in Shanghai Municipality, China, handled 51.07 million seats in 2025, up from 48.50 million in 2024 and 46.93 million in 2019.
The airport’s recovery reflects the rebound in China’s aviation market, with 2025 capacity standing nearly 9% above pre-pandemic levels.
Dallas Fort Worth International Airport (DFW) — United States
Dallas-Fort Worth International Airport is located in Texas, United States. It ranked 6th globally in 2025, handling 51.25 million seats, slightly lower than 51.52 million in 2024, but well above 43.79 million in 2019.
DFW climbed from 13th position in 2019 to sixth in 2025, highlighting strong long-term growth despite a marginal year-on-year decline.
Istanbul Airport (IST) —Turkey
Istanbul Airport is located in Istanbul Province, Turkey. It ranked 5th in 2025 with 51.51 million seats, up from 48.52 million in 2024 and 42.14 million in 2019.
The airport recorded one of the strongest growth performances in the ranking, with capacity rising by 6% year-on-year and standing 22% above pre-pandemic levels, moving from 16th place in 2019 to fifth in 2025.
London Heathrow Airport (LHR) —United Kingdom
London Heathrow Airport is located in England, United Kingdom. It recorded 52.11 million seats in 2025, compared to 51.55 million in 2024 and 50.17 million in 2019.
The airport maintained steady growth, reflecting a gradual recovery in European air travel and sustained demand across international routes.
Tokyo Haneda Airport (HND) —Japan
Tokyo Haneda Airport is located in the Tokyo Metropolis, Japan. It ranked 3rd globally in 2025 with 55.36 million seats, broadly unchanged from 2024 levels and slightly above its 2019 capacity of 54.86 million, reflecting stable demand.
Haneda’s stable performance highlights consistent demand and its continued role as Japan’s primary aviation hub.
Dubai International Airport (DXB) —United Arab Emirates
Dubai International Airport is located in Dubai, United Arab Emirates. It ranked 2nd in 2025, handling 62.43 million seats, up from about 60.00 million in 2024 and 53.76 million in 2019.
Although busier than Atlanta in some months, it remained second overall for the year, with capacity rising 16% compared to pre-pandemic levels.
Atlanta Hartsfield-Jackson International Airport (ATL) — United States
Atlanta Hartsfield-Jackson International Airport is located in Georgia, United States. It ranked 1st globally in 2025 with 63.09 million seats, up from about 62.47 million in 2024 and close to 62.88 million in 2019.
The airport retained its long-standing position as the world’s busiest, supported by the strength of the U.S. domestic aviation market.
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