Sanya Phoenix International Airport (IATA: SYX, ICAO: ZJSY) is the primary commercial airport serving Sanya, a major tourist and resort destination on China's Hainan Island. It handles tens of millions of passengers annually and is one of the busiest airports in southern China, driven largely by domestic leisure travel. The airport has undergone significant expansions to meet growing demand, with a second terminal and additional runway capacity added over the years. It serves as an important hub for travel to Hainan Free Trade Port, which China has been developing as a globally significant free trade zone. Sanya Phoenix International Airport handles a high proportion of domestic routes connecting Sanya with major Chinese cities, as well as a growing number of international routes to destinations in Southeast Asia, Russia, and other regions popular among Chinese and foreign tourists.