The world's busiest city airport systems by passenger traffic are measured by total number of passengers from all airports within a city or metropolitan area combined. London, with six commercial airports serving its metropolitan area, is the busiest city airport system in the world,[1] although Hartsfield–Jackson Atlanta International Airport is the world's busiest individual airport.
The following list is based on information provided by the Airports Council International's preliminary full-year figures for the Top 30 airports in the world,[7] and the Top 50 airports in the US[8]
The following list is based on two lists compiled by CAPA Centre for Aviation based on data from Airports Council International, one ranking cities with multiple airports[26] and the other ranking individual airports.[27]
London: Our capital's collective airport system is the busiest in the whole world. A total of 170,980,680 passengers.
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