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The consulting firm OAG revealed its classification of the busiest air routes by seats offered 2025, in which Asia continues to lead.
The analysis is based on global airline schedule data. OAG and provides an overview of global route performance and trends.
Busiest routes 2025
the path of Jeju to Seoul Gimpo is the busiest of 2025, with 14,4 million scheduled seats, a modest increase in 1 % with respect to 2024. There is still room for growth in this route, which is still a 17 % to recover their level of capacity 2019. Seven airlines operate on this highly competitive route.
The second and third routes are in Japan: Sapporo New Chitose (CTS) – Such Haneda (HND) y Fukuoka (FUCK) – Such Haneda (HND), with 12,1 millions and 11,5 million seats, respectively.
the top 10 consists exclusively of domestic flights, and Asia Pacific dominates with 9 decade 10 in the region. The only route outside Asia Pacific is fifth in the ranking, yeda (JED) – Riad (RUH), which has experienced the fastest growth among the top ten routes. The 9,8 million seats on the JED-RUH route represent annual growth in 13 %. The fourth in the classification, Hanoi (HE) – Ho Chi Minh (SGN), also grew a 4 % interannual, and the tenth, Shanghai (SHA) – Shenzhen (SZX), has experienced an increase in capacity 5 %, going from eleventh place last year to the top ten.
Regarding cross-border flights, Hong Kong (HKG) – Taipei (TPE) It is the busiest route 2025, with 6,8 million seats, followed by Cairo (CAI) – yeda (JED) with 5,8 million seats and Kuala Lumpur (KUL) – Singapur Changi (SIN) with 5,6 millions.
By regions
And if we review by region, These are the general results:
- Pacific Asia: Jeju – Seoul Gimpo | 14,384,766 seating
- Middle East: Jeddah - Riad | 9,819,558 seating
- Latin America: Bogota – Medellin | 6,219,202 seating
- Africa: Cape Town – Johannesburg | 5,475,986 seating
- North America: Vancouver - Toronto | 3,655,423 seating
- Europe: Barcelona – Palma | 2,955,696 seating
It is impressive to note that the route in Asia Pacific (Jeju – seoul) practically doubles in capacity that of Latin America and almost five times that of Europe.
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