Flight CA4195 of Air China departs for Beijing Capital International Airport from the Chengdu Tianfu International Airport in Chengdu, southwest China's Sichuan Province, June 27, 2021. Chengdu Tianfu International Airport in southwest China's Sichuan Province has opened for operations, with a Sichuan Airlines flight bound for Beijing taking off on Sunday morning. [Photo by Shen Bohan/Xinhua]