"As global air travel settled into a new rhythm in 2025, OAG's latest Busiest Flight Routes in the World report offers a clear picture of where travelers have been flying the most across the year. Based on scheduled seat capacity, the rankings highlight the air corridors that carried the highest volumes of passengers worldwide, and they are overwhelmingly concentrated in one region."
"Japan claims both the second and third spots, reflecting the country's deeply entrenched culture of domestic air travel and the scale at which its major cities remain connected throughout the year. India also makes a strong showing. The Mumbai-Delhi corridor ranks as the eighth-busiest domestic route globally, with 7,642,016 scheduled seats in 2025, an emphatic marker of how indispensable this air bridge continues to be for business, leisure, and everyday movement between the two metros."
Nine of the top ten busiest flight routes in 2025 were within the Asia-Pacific, driven by dense city pairings, frequent short-haul services, and sustained passenger demand. Jeju (CJU)–Seoul Gimpo (GMP) led the list with 14.4 million scheduled seats. Japan held the second and third positions, reflecting high domestic travel volumes and strong connectivity among major cities. India’s Mumbai–Delhi corridor ranked eighth globally with 7,642,016 scheduled seats, underscoring its importance for business, leisure, and everyday movement. OAG compiled rankings from scheduled seat capacity across the calendar year, counting flights in both directions.
Read at Conde Nast Traveler
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