Tân Sơn Nhất International Airport (, ) is Vietnam's largest international airport in terms of area ( compared with of Ha Noi's Nội Bài International Airport and Đà Nẵng's Đà Nẵng International Airport). After recent expansion to meet increasing demand, it currently has a handling capacity of 25 million passengers per year, compared with the capacity of Hanoi – Noi Bai airport of 19 million passengers and Da Nang's 6 million passengers. It is also the largest airport of Vietnam and one of the top 50 busiest airports in the world in terms of passengers handled with over 26 million passengers in 2015, serving Ho Chi Minh City as well as the rest of southeastern Vietnam. Its IATA code, SGN, is derived from the city's former name of Saigon.