Every single airport’s purpose is to help people travel from the point A to the point B. Nevertheless, particular locations of some airports play a greater role in the global network than others.
To help put this connectivity between airports into perspective, OAG, the leading global provider of digital flight information, created the Megahubs International Index.
"For the 2018 edition of the OAG Megahubs International Index, the British hub, London’s Heathrow Airport, topped the charts, with 66,000 possible international connections between flights arriving and departing at the airport within a six-hour window on the busiest day of global aviation in 2018."
Chicago O’Hare (ORD) has moved up the Megahubs index and is ranked in 2nd place this year. The airport has more potential international connections on the busiest day but these are spread across a greater number of destinations.
Ranked 3rd and 4th are Frankfurt Airport (FRA) and Amsterdam Airport (AMS), securing three of the top 4 places for European hub airports.
The next largest Megahub in North America is Toronto Airport (YYZ), which is ranked 5th overall.
"The largest Megahubs in Asia Pacific are all located in South East Asia. Singapore Changi Airport (SIN) ranks 8th overall, followed by Jakarta Airport (CGK) in 10th place."
Kuala Lumpur Airport (KUL), Hong Kong Airport (HKG) and Bangkok Airport (BKK) are also within the top 15 International Megahubs.
Another Asian hub, Incheon (ICN), makes it into the top 15 International Megahubs in 15th place.