Dubai International Airport has once again topped the list of the world's busiest international airports in 2025, marking its third consecutive year in the number one position.
According to a report by global travel data and analytics company OAG Aviation Worldwide (OAG), based on last year's scheduled international airline seats, Dubai Airport saw a 4% year-on-year increase in seat capacity, reaching 62.4 million, which is 16% higher than the level in 2019.
Dubai Airport also outpaced second-ranked London Heathrow Airport by 13.5 million seats.
London Heathrow Airport's seat numbers grew by 1% to 49 million, a 4% increase compared to 2019.
Seoul Incheon International Airport retained its third place with 43 million seats, recording a 3% year-on-year increase and a 2% rise compared to 2019.
Changi Airport was the world's fourth busiest international airport last year, with approximately 42.6 million seats, up 3% from the previous year, maintaining the same ranking as in 2024.
Hong Kong International Airport saw a 12% year-on-year increase in seat numbers last year, reaching 38.7 million and ranking eighth. Among the airports in last year's global top 10, Hong Kong International Airport had the largest year-on-year percentage growth, but its total seat capacity remains 14% lower than its 2019 level.
Istanbul Airport was ranked the sixth busiest international airport and had the fastest growth compared to 2019. The OAG report noted that its seat numbers surged by 27% compared to 2019, reaching 41.2 million last year—a figure that also represented a 7% increase over 2024.