5 hours and 30 minutes. The direct flight from Urumqi to Sanya is 3,923 kilometers long and takes more than 5 hours to fly. Urumqi to Sanya fly 5 hours and 30 minutes. It is the longest route among all direct flights of Hainan branch of China Southern Airlines. Urumqi, commonly known as Urumqi, formerly known as Dihua, Xinjiang Uygur Autonomous Region, prefecture-level city, capital, Type I large cities, the State Council approved the determination of the Northwest China's important central city and the international trade center for Central Asia and West Asia.