South Korea’s Incheon International Airport has captured the top spot globally for international passenger volume in the first half of the year, surging past major Western and Middle Eastern hubs according to preliminary statistics released by Airports Council International (ACI).
For the first six months of the year, Incheon handled 38.39 million international travelers, edging out London Heathrow, which recorded 37.79 million passengers to finish second, and Singapore Changi, which placed third with 34.53 million, based on data published by Incheon International Airport Corporation (IIAC).
The milestone reflects a profound shift in global aviation pathways. Regional airspace restrictions in the Persian Gulf and broader Middle East significantly curtailed operations at dominant transfer hubs earlier in the year. According to IIAC, traffic that previously flowed through Middle Eastern connection points like Dubai has redirected toward direct flights or alternative transit hubs such as Incheon.
The impact is particularly clear when examining traffic patterns in the United Arab Emirates. Dubai International Airport held the title of the world’s largest international airport for the full year of 2025, according to ACI, with Heathrow second and Incheon third. Before airspace restrictions disrupted the region, Dubai’s operator anticipated nearly 100 million travelers for the year. Instead, the hub handled 18.6 million people in the first quarter, down from 23.4 million during the same period in the prior year, following an approximate two-month reduction in airspace capacity.
London Heathrow experienced similar turbulence on its Middle Eastern routes. While Heathrow reported a total first-half volume of 37.79 million passengers—a slight 0.2 percent increase year-over-year—traffic specifically between Heathrow and the Middle East dropped by a quarter, falling from 4.1 million to 3.1 million travelers, according to airport data.
Infrastructure Expansion and Regional Tourism Fuel Incheon’s Growth
Beyond the diversion of long-haul transit traffic, Incheon’s ascent is supported by a surge in short-haul inbound travel from neighboring East Asian economies. Data from IIAC shows that foreign visitors from China and Japan made up a record 44.4 percent of international arrivals during the second quarter.
Opened in 2001, Incheon has steadily climbed the global rankings. It stood as the world’s tenth-busiest international airport a year after opening, advanced to fifth place by 2018, and reached third place in 2024 before claiming the top spot at the midpoint of 2026. The hub’s operator has steadily scaled up capacity to support this volume, with the airport’s current infrastructure rated to handle up to 106 million passengers annually across roughly 158 international destinations.
Additional corroboration from iROZHLAS confirms that Incheon handled 38.4 million international passengers in the first half, while citing BBC reports on the preliminary ACI dataset. The reporting notes that ongoing infrastructure enhancements in South Korea have successfully accommodated the influx of passengers seeking alternatives to constrained Middle Eastern routing.
Global Aviation Rankings Face Shaking Amid Changing Corridors
The temporary compression of Middle Eastern airspace has upended long-standing traffic forecasts. Industry analysts note that Dubai International Airport is projected to slip out of the global top five for total passenger volume this year following the multi-month capacity constraints.
Meanwhile, European heavyweights like Heathrow continue to navigate uneven quarterly demand. Heathrow reported that its overall performance in the second quarter dipped 2.7 percent compared to the same period in the previous year, even as its total half-year throughput set a record due to strong transatlantic and European point-to-point travel.
Airports Council International is slated to release finalized, audited traffic figures later in the year, which will solidify the full-year standings for global aviation hubs. Travelers and industry stakeholders can monitor ongoing updates through official announcements published directly by Airports Council International.
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