China Southern Airlines Flight 3456 (CZ3456) was a flight from Chongqing to Shenzhen Huangtian Airport (now Shenzhen Bao'an International Airport), Guangdong Province, People's Republic of China that crashed while attempting to land in a thunderstorm. China Southern continues to operate the Chongqing-Shenzhen route as Flight 3456 but it now uses an Airbus A320.