Airfares on the world’s busiest flight routes in 2025 painted a mixed picture for the aviation and travel sector.
Across Asia, some of the world’s highest-traffic routes recorded year-on-year fare declines, particularly where multiple carriers compete heavily, according to new analysis from aviation data firm OAG.
For instance, the Jeju–Seoul Gimpo route, the busiest globally, saw average one-way economy fares fall 11% to US$44, reflecting sustained price pressure on short domestic hops. Similar trends were seen on Japan’s Fukuoka–Tokyo Haneda corridor, where fares dropped 12%.
Similarly, the Shanghai Hongqiao-Shenzhen route is among the region’s most competitive, with seven carriers in operation, leading to extreme competition across legacy and low-cost airlines.
Vietnam’s largest domestic route, Hanoi-Ho Chi Minh City is also highly competitive, with six carriers and saw airfares decrease by 11% year-on-year, with the average one-way economy ticket costing US$67.
Not all routes followed the downward trend. Beijing–Shanghai Hongqiao recorded the sharpest fare increase among the world’s busiest routes, rising 35% to an average of US$304, despite ongoing competition from China’s high-speed rail network.
On longer-haul routes, pricing remained resilient. New York JFK–London Heathrow recorded the highest average fare among the world’s busiest international routes at approximately US$585, highlighting the continued strength of travel demand on key transatlantic corridors.