Busiest airports in the world
Which is the busiest airport in the world?
June 2026
View the World's Busiest Airports, with data powered by OAG's Schedules Analyser.
We provide separate lists for global airports and international airports. The Top 10 Busiest Global Airports in the World are calculated using total airline capacity (domestic and international flights). The Top 10 Busiest International Airports focus on international airline capacity only. The data is updated each month and is available to download by clicking the button below.
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Busiest airports in the world at a glance
- Busiest Global (International + Domestic Capacity) Airport: Hartsfield–Jackson Atlanta International Airport (ATL)
- Busiest International Airport: London Heathrow Airport (LHR)
- Busiest European Airport: London Heathrow Airport (LHR)
Busiest airports in the world (all capacity)
Which is the busiest airport in the world?
- In June 2026, Hartsfield–Jackson Atlanta International Airport (ATL) remains the World’s Busiest Airport with 5.40 million seats, despite a 3% decline in capacity compared with June 2025. The collapse of Spirit Airlines accounts for 90% of the capacity reduction at ATL, with 157,000 fewer seats this June.
- Chicago O’Hare International Airport (ORD) retains second place with 4.86 million seats and records strong growth of 6% year-on-year, the highest increase among the top five airports.
- Dallas/Fort Worth International Airport (DFW) ranks third with 4.56 million seats, with capacity remaining broadly stable compared with last year, while Denver International Airport (DEN) moves into fourth place with 4.51 million seats, growing by 2%.
- Tokyo Haneda Airport (HND) completes the top five with 4.47 million seats, a modest decline of 1% year-on-year.
- Further down the rankings, London Heathrow Airport (LHR) remains sixth with 4.29 million seats, down 2% compared with June 2025.
- China continues to be well represented amongst the top ten, with Shanghai Pudong International Airport (PVG) and Guangzhou Baiyun International Airport (CAN) ranking seventh and eighth respectively, both recording growth of 3% year-on-year to reach 4.26 million and 4.22 million seats.
- Istanbul Airport (IST) ranks ninth with 4.20 million seats, experiencing the largest decline among the top ten airports at 7%. Capacity reductions have taken place across some key markets including Germany, the UAE and Iran as a result of the war in the Middle East. There are also reductions in the domestic market in Turkiye across a number of routes.
- Los Angeles International Airport (LAX) rounds out the top ten with 3.89 million seats, down 3% compared with last year.
Busiest international airport in the world
Which is the busiest international airport in the world?
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In June 2026, London Heathrow Airport (LHR) remains the World’s Busiest International Airport, handling 4.04 million seats, although capacity has declined by 2% compared with June 2025.
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Despite capacity still being down by 27% year on year at Dubai International Airport (DXB), it ranks second with 3.68 million seats this month.
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Amsterdam Airport Schiphol (AMS) moves into third place with 3.59 million seats, posting modest growth of 1%, while Seoul Incheon International Airport (ICN) follows closely in fourth with 3.52 million seats, with capacity increasing by 2% compared with last year.
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Singapore Changi Airport (SIN) completes the top five with 3.50 million seats, and records a slight decline of 1% year-on-year.
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Istanbul Airport (IST) ranks eighth in this category with 3.30 million seats, recording a 6% decline compared with last year.
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Hong Kong International Airport (HKG) is ninth with 3.14 million seats, posting growth of 2% year-on-year.
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Madrid Adolfo Suárez–Barajas Airport (MAD) rounds out the top ten with 2.60 million seats and records the strongest growth among the leading international airports, increasing capacity by 7% compared with June 2025.
Busiest European airports
Which is Europe's top airport?
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London Heathrow Airport (LHR) remains Europe’s busiest airport in June 2026, handling 4.29 million seats, although capacity declines by 2% compared with June 2025.
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Istanbul Airport (IST) retains second place with 4.20 million seats but records a more significant 7% decline year-on-year. Paris Charles de Gaulle Airport (CDG) ranks third with 3.80 million seats, with capacity remaining broadly unchanged compared with last year, while Frankfurt Airport (FRA) holds fourth place with 3.65 million seats, down slightly by 1%.
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Amsterdam Airport Schiphol (AMS) completes the top five with 3.59 million seats, posting modest growth of 1%.
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Madrid Adolfo Suárez–Barajas Airport (MAD) continues to be one of Europe’s strongest-performing major airports, increasing capacity by 7% year-on-year to 3.45 million seats in sixth place. Barcelona Airport (BCN) follows in seventh position with 3.16 million seats, recording growth of 5% compared with June 2025.
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Rome Fiumicino Airport (FCO) also grows by 5%, reaching 2.98 million seats and ranking eighth. Istanbul Sabiha Gökçen Airport (SAW) remains ninth with 2.52 million seats, posting a 2% increase year-on-year.
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Munich Airport (MUC) rounds out the top ten with 2.52 million seats, although capacity declines by 3% compared with last year.
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Add your email and we'll send you all of this month's data to download.
Ranking methodology
How do we calculate the busiest airport?
The rankings are based on scheduled capacity in the current month and compared to the equivalent month in 2025. The Top 10 Busiest Airports are calculated using total capacity (domestic and international) and The Top 10 Busiest International Airports are calculated using international seats only.
For May 2026, airports in the Middle East have been excluded from these tables due to outbreak of war in late February which has disrupted airline schedules significantly.
FAQs about the world's busiest airports
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What makes these airports the busiest?
The top airports for capacity combine prime location, hub airlines, large-scale infrastructure, and strong economic or tourism pull.
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Why use capacity as a metric?
Capacity data and passenger numbers will tend to follow the same trend, but by using capacity data to determine the busiest airport we can look ahead to the upcoming month.
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Are these the busiest airports by number of flights?
We define our busiest airports by capacity, which provides a forward-looking view of passenger-carrying potential. Measuring by flights instead reflects aircraft movements (takeoffs and landings) and highlights overall air traffic. Airports with heavy short-haul domestic schedules often rank high by flights, but this does not necessarily translate into greater passenger capacity.
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