The world's top 30 airports of 2015

London-based aviation research institute Skytrax recently announced the winners for the World Airport Awards 2015, also known as the Passenger's Choice Awards. The winners were selected on the basis of a customer satisfaction survey, which was completed by more than 13 million travellers from 112 nations from May 2014 to January 2015. Here’s a look at the winners.

30. Cincinnati Airport, USA

Covering an area of 8,000 acres, the airport has won the Best Regional Airport in North America award for five years in a row.