The Noi Bai International Airport in Hanoi has slipped four spots from last year to 86th place in the annual ranking by Skytrax, a UK–based consultancy which runs an airline and airport review every year based on votes by international air travelers.
In the latest ranking results released Wednesday, the Hanoi airport lags far behind regional peers like Indonesia’s Jakarta (40th), Thailand’s Suvarnabhumi (46th) and Malaysia's Kuala Lumpur (54th).
Changi Airport of Singapore was voted the World’s Best Airport for seventh consecutive year.
The rest of the top 10 are dominated by five of Asia's largest international airports: Seoul Incheon, Tokyo Haneda, Hong Kong, Centrair Nagoya and Tokyo Narita.
Noi Bai, 35 km (22 miles) north of Hanoi's center and the country's second biggest after the Tan Son Nhat Airport in Ho Chi Minh City, has improved tremendously in recent years after being considered one of the worst in Asia in 2014 by the survey site "The Guide to Sleeping in Airports."
Passengers are now provided with a series of conveniences like free fresh water, free wifi, free shuttle bus for connecting guests, free trams for disabled passengers and free mobile phone charging outlets.
Vietnam is planning a $5.5 billion expansion of the Noi Bai Airport to double its capacity to 50 million passengers per year by 2030.
The country's aviation market has been ranked among the world’s 10 fastest-growing on the back of its recent tourism boom, according to the Airport Council International (ACI), a non-profit organization representing the world’s airports.
Vietnam's aviation industry has experienced rapid development in recent years. A record 106 million passengers passed through Vietnamese airports last year, an increase of 12.9 percent from the previous year.