The Airports With the Strongest Flight Networks in the World

"OAG's Megahubs 2025 ranking reveals how well an international airport has connected you to the rest of the globe last year, based on a simple but telling comparison: These unique rankings are generated by comparing the number of scheduled connections to and from international flights with the number of destinations served from the airport."

"At the very top, London's Heathrow Airport holds its ground for the second year in a row, clocking nearly 60,000 connections across 226 global destinations. Close behind, Istanbul Airport (which was voted by Condé Nast Traveler readers as the best international airport in 2025) takes second place with a staggering 82,733 total connections, while Amsterdam's Schiphol ranks third, by linking travelers to 275 destinations through 66,798 connections."

"The US continues to dominate the list with heavy hitters like Chicago and Atlanta placing back-to-back in the 7th and 8th rank, while Paris Charles de Gaulle closes out the top 10 with 57,017 connections."

OAG's Megahubs 2025 ranking identifies the world's most well-connected airports by comparing scheduled international flight connections with destinations served. London Heathrow maintains the top position for the second consecutive year with nearly 60,000 connections across 226 global destinations. Istanbul Airport ranks second with 82,733 total connections, while Amsterdam Schiphol takes third place with 66,798 connections to 275 destinations. The United States maintains significant presence on the list, with Chicago and Atlanta ranking seventh and eighth respectively. Paris Charles de Gaulle completes the top ten with 57,017 connections. These rankings provide travelers with essential information for planning international trips and understanding airport connectivity.

Read at Conde Nast Traveler