South Korea's Incheon Takes Top Spot in Global International Passenger Rankings

South Korea's Incheon International Airport has emerged as the world's busiest airport for international passenger traffic during the first half of 2026, according to preliminary figures from the Airports Council International.

Incheon handled approximately 38.4 million international passengers in the first six months of the year, narrowly surpassing London Heathrow, which recorded 37.79 million. Singapore's Changi Airport ranked third with 34.53 million international passengers.

The sharp rise at Incheon has been partly attributed to changes in global aviation patterns following the conflict between the United States and Iran, which disrupted travel through several major Middle Eastern aviation hubs.

Incheon airport officials said some travellers who would previously have used Dubai as a transit point when travelling between Asia and Europe had instead shifted to routes through South Korea.

The change contributed to an 18% increase in transfer passengers compared with the same period last year. The number of transfer passengers travelling onward to Europe surged 63.2% to about 210,000.

Dubai International Airport, which ranked second globally in both 2024 and 2025 based on full-year passenger figures, is expected to drop out of the world's top five in the latest rankings.

Incheon's rise marks a significant change from previous years. The South Korean airport ranked 12th globally in 2024 and 13th in 2025, while Heathrow was fifth and seventh respectively during those years.

Airport officials also credited expanded infrastructure and improved capacity for helping Incheon handle the increase in passenger numbers.

Opened in 2001, Incheon International Airport has developed into a major Asian aviation hub, currently connecting South Korea with 158 international destinations.

That network is larger than those of several other major Asian airports. Hong Kong International Airport serves 139 international destinations, while Shanghai Pudong serves 92 and Tokyo's Narita Airport serves 86.

Incheon Airport Corporation acting president Kim Beom-ho praised the South Korean government, the public and airport employees for contributing to the airport's rise to the top of the international rankings.

Kim said the corporation would continue working to strengthen Incheon's competitiveness, with passenger convenience remaining a key priority.

The latest figures highlight the changing dynamics of international air travel, with geopolitical developments, expanding infrastructure and shifting transit patterns reshaping the world's busiest aviation hubs.