Jeju: Jeju to Seoul Gimpo has emerged as the busiest airline route of 2025, with 14.4 million seats scheduled, marking a one per cent increase compared with 2024, according to OAG's ranking of 2025's Busiest Airline Routes.

According to BERNAMA News Agency, OAG Chief Analyst, John Grant, highlighted the significance of these routes, emphasizing the growing importance of emerging markets globally. He noted that Asia Pacific's dominance, with nine out of the 10 largest routes being domestic, underscores the recovery and significance of these routes for airlines in the region.

Powered by OAG's Global Airline Schedules Data, the analysis offers insights into global route performance and trends. Despite its leading position, the Jeju-Seoul Gimpo route's capacity remains 17 per cent below its 2019 level, indicating potential for further growth.

OAG also reported that the second- and third-busiest routes are in Japan, specifically Sapporo New Chitose to Tokyo Haneda and Fukuoka to Tokyo Haneda, with 12.1 million and 11.5 million seats scheduled, respectively. The analysis showed that all top 10 busiest routes are domestic, with the Asia Pacific region dominating the ranking. The Jeddah to Riyadh route, the only one outside Asia Pacific, ranked fifth and recorded the fastest growth among the top 10, with a 13 per cent year-on-year increase.

The Hanoi to Ho Chi Minh route experienced a four per cent year-on-year growth, while the Shanghai to Shenzhen route entered the top 10 for the first time, with a five per cent increase in capacity compared to the previous year. Meanwhile, the Hong Kong to Taipei route remained the world's busiest cross-border route in 2025, with 6.8 million seats, followed by Cairo to Jeddah with 5.8 million seats and Kuala Lumpur to Singapore Changi with 5.6 million seats.