Which is world's second busiest airport for international passengers?

By Hoang Vu   August 15, 2026 | 03:00 pm PT Google Get VnExpress first in Google Search info See more of the news you trust. Make VnExpress a preferred source to prioritise our updates in your Google search results
London Heathrow Airport handled 37.79 million passengers in the first half of this year, making it the world's second busiest international airport after South Korea's Incheon, according to data compiled by Airports Council International.

Incheon Airport handled 38.39 million international passengers in the first half of this year.

Industry insiders said London Heathrow Airport was "operating at capacity," according to British newspaper The Independent.

Heathrow's two runways are operating close to full capacity as the airport seeks government approval for a third runway, The Guardian reported.

Its £33 billion (US$38 billion) expansion plan would allow it to handle up to 150 million passengers annually.

The Departure Hall in Heathrow Terminal 3 in London, Britain, Aug. 22, 2023. Photo by Reuters

The Departure Hall in Heathrow Terminal 3 in London, Britain, Aug. 22, 2023. Photo by Reuters

The airport said the project would provide the infrastructure needed to keep the U.K. competitive and support economic growth.

Heathrow CEO Thomas Woldbye said the airport's expansion would help maintain the U.K.'s position as home to Europe's leading aviation hub while supporting trade, investment and tourism through improved connectivity, The Guardian reported.

The west London airport recorded 79 million international passengers last year, up 1% year-on-year.

Incheon Airport serving South Korea's capital Seoul has seen a surge in popularity partly due to the U.S.-Iran conflict, which has prompted airlines to divert passengers from Middle Eastern hubs such as Dubai to alternative routes through Asia, Korea Times reported.

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