Top 10 Most Connected Airports in the World 2025

The world's top 10 most connected airports in 2025, based on OAG's Megahubs 10th Edition report, are globally important megahubs featuring the highest levels of passenger connectivity and scheduled international connectivity. London Heathrow Airport (LHR) maintains the historic number one position, with more than 59,000 possible connections to 226 destinations on its busiest day. 

Istanbul Airport (IST) jumped an impressive place to second position due to a 25% rise in connections. Some of the key centers are Amsterdam Schiphol (AMS), Frankfurt (FRA), and Kuala Lumpur International Airport (KUL). Atlanta Hartsfield-Jackson (ATL) and Chicago O'Hare (ORD) are also among the major US airports. These are key international gateways that link continents together and enable international travel.

Top 10 Most Connected Airports in the World 2025

• United Kingdom: The UK is in the lead position with London Heathrow Airport (LHR) being named the world's most connected airport for the third year running. Heathrow provides more than 59,000 possible connections to 226 destinations. The nation has a robust global hub position, which is balanced between established gateways and emerging global demand.

• Turkey: Istanbul Airport (IST) moves into the second most connected position worldwide after a leap from 8th position in 2024, driven by a 25% year-over-year growth in potential connections. The growth reinforces Istanbul's strategic position as a bridge between Europe, Asia, and the Middle East.

• Netherlands: Amsterdam Schiphol Airport (AMS) moves from 4th to 3rd position in 2024, driven by expansion in scheduled connections and destinations operated, reaffirming its status as a key European hub.

• Germany: Frankfurt Airport (FRA) moved into 4th position, with a strong 21% year-on-year increase in connections. Frankfurt's ongoing expansion demonstrates strong regional and international connectivity against some movement in domestic traffic.

• Malaysia: Kuala Lumpur International Airport (KUL) comes in joint 4th with Frankfurt and is the top-ranked Asian airport in the top 10. KUL is fueled by a strong rise in international connectivity in accordance with Asia-Pacific growth dynamics.

Other Key Details

• The Asia-Pacific region as a whole recorded a staggering 13-14% growth in connectivity.

• The Middle East, led by hubs such as Istanbul, recorded a staggering 28% growth.

• United States airports also recorded growth, with Atlanta (ATL) and Chicago (ORD) recording 14% and 17% increases respectively.

The world's most connected airports in 2025 show an active aviation market where historic hubs like London Heathrow continue to hold top positions while others like Istanbul Airport grow explosively. The growth of airports in Asia and the continued dominance of US hubs also indicate shifting travel trends and growing global connectivity. 

These airports not only enable billions of passenger trips each year but also provide vital conduits for economic, cultural, and social flows between nations globally. Their connectivity scores underscore how aviation keeps the world ever more intricately connected.

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