Hainan Airlines is an airline headquartered in the HNA Development Building in Haikou, Hainan, People's Republic of China. It is the largest privately-owned air transport company and the fourth-largest airline in terms of fleet size in the People's Republic of China. It operates scheduled domestic and international services on 500 routes from Hainan and nine locations on the mainland, as well as charter services. Its main base is Haikou Meilan International Airport, with hubs at Beijing Capital International Airport, Xi'an Xianyang International Airport, Taiyuan Wusu Airport and Urumqi Diwopu International Airport.
On November 30, 2007, the four airlines under HNA group, Hainan Airlines, Shanxi Airlines, Chang'an Airlines, and China Xinhua Airlines, merged into Grand China Air (Chinese: 大新華航空), which will be the fourth-largest airline in China. Grand China Air is under a newly-formed parent company called Grand China Airlines Holding CO which is held jointly by Hainan province government (48.6%), George Soros (18.6%), and HNA group (32.8%).
On December 1, 2009, Hainan Airlines was awarded the four-star airline by Skytrax, making the first Chinese carrier to win that award. It is also listed as a Skytrax quality approved Airline.