Suvarnabhumi Airport has been ranked fifth best in its category of annual capacity of more than 40 million passengers.
In the 2010 list, there were 13 airports rated in the category by Airports Council International (ACI). The top four are in Hong Kong, Beijing, Dubai and Dallas.
According to Airports of Thailand, which operates the Bangkok airport, in 2009, Suvarnabhumi was ranked sixth in the category of airports with capacity of 25 million to 40 million passengers.
In 2010, with the number of passengers reaching 42.7 million, it was moved up to the category of more than 40 million passengers.
The ACI 2010 ranking covered 154 airports across the world. The ranking was based on a satisfaction survey of 260,000 passengers at those airports.