10 Busiest Airports in The World by International Passenger Traffic

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2. London Heathrow Airport, London, United Kingdom

Total number of passengers for the 12 months ended December 2014: 68,091,095

It is no surprise that the Heathrow Airport is number 2 on the list of 15 biggest airports in the world by international passenger traffic, due to it being located in the most visited city in the continent of Europe.

London Heathrow Airport, London, United Kingdom

Milosz_M/Shutterstock.com

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