The awards were based on the ACI ASQ survey, which records passengers’ immediate appraisal from check-in through to departure at more than 300 airports worldwide.
Passengers provided opinions on 34 key service indicators, including access, check-in, security, airport facilities, food and beverage, and retail.
The ASQ awards are presented in four main categories, namely best airport by region, best airport by size, best small airport and best improvement.
ACI World director general Angela Gittens said: "Airports’ increasing concentration on ensuring a stellar passenger experience is part of a larger trend.
"From duty free and restaurants to ambience, cleanliness, courtesy of staff, amenities, efficiency and more, air travellers are expecting big things from the airports through which they travel.
"More than anything, ASQ is a way for participants to measure the extent to which they deliver on these expectations."
The airports that secured the best airport award according to region are Mauritius, Africa; Seoul Incheon, Asia-Pacific; Moscow Sheremetyevo, Europe; Guayaquil, Latin America-Caribbean; Amman, Middle East; and Indianapolis, US.
The best airport awards based on size were presented to Jaipur (two to five million), Sanya Phoenix (five to 15 million), Seoul Gimpo (15 to 25 million), New Delhi and Mumbai (25 to 40 million), and Seoul Incheon (more than 40 million).
While Upington (Africa), Skopje (Europe), Culiacan (Latin America-Caribbean), and Portland (North America) received the best small airport award, the best improvement award was given to Nairobi, Africa; Denpasar, Asia-Pacific; Istanbul, Europe; Dammam, Middle East; and Saskatoon, North America.