Asian airports, with Seoul's Incheon top of the list for the fifth year in a row, have been voted by travelers the world's top five for passenger service, the global airports body ACI said Tuesday. Singapore's Changi was second in 2009 and Hong Kong third, both also for the second year in a row, in its annual Airport Service Quality survey, said ACI, the Geneva-based Airports Council International. But two newcomers - Beijing and India's Hyderabad Rajiv Gandhi International - moved into fourth and fifth place, edging out Nagoya-Central Japan International and Canada's Halifax, Nova Scotia who held those places in 2008. The ACI survey is based on regular monthly questionnaires filled in by passengers passing through well over 100 leading world airports in some 45 countries. A total of 118 airports were involved in the 2009 survey.