China Southern Airlines (CZ, Guangzhou) has ordered 100 incremental C919s from COMAC (Shanghai Pudong), with deliveries scheduled to begin in August this year and run until 2031. The carrier is the last of China's three big state-owned airlines to commit to the same number of locally built narrowbodies.

The carrier revealed in a stock market filing that the transaction is denominated in US dollars, but will be settled in cash in Chinese renminbi/yuan sourced via a mix of cash, loans, and other financial instruments.

The C919s will be used to "alleviate the capacity demand pressure", particularly driven by the growing demand for narrowbody capacity in the Chinese domestic market. The airline did not reveal whether the aircraft would be replacing any current narrowbodies or if they would be used mainly for growth.

China Eastern Airlines, which already operates five of the type, placed an incremental order for another 100 in 2023. Air China increased its order from five to 105 in late April 2024. China Southern already had an existing order for five C919s.

According to the ch-aviation fleets module, China Southern's current narrowbody fleet comprises nine A319-100s, four A319-100N, ninety-nine A320-200s, fifty A320-200Ns, ninety-seven A321-200s, twenty-eight A321-200Ns, thirty-three A321-200NX, eighteen B737-700s, twenty-eight B737-8s, and eighty-five B737-800s.