[category]
[title]
From late Ubers and long security lines to dodgy Wi-Fi and baggage carousel roulette, airports are a nonstop stream of chaos. The only thing more hectic? Boarding one of the world’s busiest flights. New data from aviation analytics company OAG has revealed the most-flown domestic routes in 2025 – and odds are, if you’re Australian, you’ve flown at least one of them.
Interestingly, nine of the world’s ten most popular flight routes are concentrated in just one region – the Asia Pacific. Soaring into first place once again is the South Korea connection between Jeju International and Seoul Gimpo airports, which carried 14.38 million passengers in 2025, or roughly 39,000 seats daily.
Tokyo Haneda was the most-mentioned airport in the top ten, with the route between Sapporo New Chitose and Tokyo Haneda ranking second with 12.1 million seats, followed by the Fukuoka–Tokyo Haneda connection at 11.5 million. The Tokyo Haneda–Okinawa Naha flight path also made the cut, landing in seventh place.
Only one Australian route featured in the top ten, and that was the 1.5-hour flight connecting Melbourne and Sydney in sixth place. Last year, a mega 8,951,497 passengers flew between the two capital cities, marking a slight dip from 2024’s total of 9,217,377. That drop follows a shake-up in the top ten leaderboard, when the Melbourne–Sydney connection was overtaken by Saudi Arabia’s flagship domestic route between the Kingdom’s two largest cities: Jeddah and Riyadh. It was the only top-ten route outside the Asia Pacific and recorded a major 13 per cent year-on-year increase, clocking 9.8 million seats in 2025. You can check out the top ten busiest flight paths below.
The 10 busiest flight routes in the world in 2025
- Jeju International – Seoul Gimpo
- Sapporo New Chitose – Tokyo Haneda
- Fukuoka – Tokyo Haneda
- Hanoi – Ho Chi Minh City
- Jeddah – Riyadh
- Melbourne – Sydney
- Tokyo Haneda – Okinawa Naha
- Mumbai – Delhi
- Beijing – Shanghai Hongqiao
- Shanghai Hongqiao – Shenzhen