What is the Busiest Airport in the World?

View and interrogate the World's Busiest Airports, with data powered by OAG's Schedules Analyzer.

The Top 10 Busiest Global Airports in the World are calculated using total airline capacity (domestic and international flights) and The Top 10 Busiest International Airports are calculated using international airline capacity.  The data is updated each month. 

Busiest Global Airport in the World - October 2021

Half of the Top 10 Global Airports, by seat capacity, are located in the US. Atlanta (ATL) remains in first place, and Chicago O’Hare (ORD) keeps its second-place spot. Reflective of the strong growth in the Chinese domestic market this month, there are now three Chinese airports in the Top 10 with Istanbul (IST) and Delhi (DEL) making up the final two.

October 2021 vs October 2019 - Only four of the airports in the Top 10 this month were in the Top 10 in October 2019. Shenzhen (SZX) has increased most, from 29th up to 9th, whilst Denver (DEN) has also moved up the rankings from 20th to 5th.

Busiest International Airport in the World - October 2021

Amsterdam Schiphol (AMS) position as the World's Busiest International Airport was short-lived as Dubai (DXB) reclaims the top spot this month as capacity through the Middle East hub returns in earnest.  Amsterdam moves into second place and Europe’s other big hubs are also catching up with Frankfurt (FRA) moving into 3rd place and London Heathrow (LHR) into 4th.

October 2021 vs October 2019 - There are still eight European* airports in the Top 10 Busiest International Airports this month. Antalya (AYT) in 9th place is up from 32nd in October 2019, and Vienna (VIE) is 10th from 22nd two years ago.

 

Methodology:

Seats

The rankings are based on scheduled capacity in the current month, and compared to the equivalent month in 2019, pre-pandemic. The Top 10 Busiest Airports in the World are calculated using total capacity (domestic and international) and The Top 10 Busiest International Airports are calculated using international seats only.

Flights

The rankings are based on scheduled frequency in the current month, and compared to the equivalent month in 2019, pre pandemic. The Top 10 Busiest Airports in the World are calculated using total frequency (domestic and international) and The Top 10 Busiest International Airports are calculated using international frequency only.

*Turkey is included in this definition.

Related OAG Content:

Busiest Routes Right Now - see the world's busiest international and domestic routes ✈️

US Aviation Market Insights and Analysis - data focused on the US, including Top 10 Airports, Top 10 Airlines, states adding most capacity + more 🌎

On-Time Performance and the Punctuality League 🏆

Webinar Series: up to date insights with industry experts