Capacity for the three months is 24% up on the same time series last year.
Biojet fuel, which cuts emissions of carbon dioxide by more than half over the whole life cycle, has gained momentum against the backdrop of carbon peak and carbon neutrality goals in the country in recent years.
The jet has not flown commercially in China since March 2019, when it was grounded after two fatal crashes.
The first C919 will be delivered to the first operator, China Eastern Airlines, before the end of the year.
Cathay has said it plans to hire an additional 4,000 staff to fill operational needs over the next 18 to 24 months as travel rebounds.
Those dates are of course subject to change, especially given reports of Hong Kong aiming to reopen to the world with quarantine-free travel by November.
By mid-summer, China’s domestic RPKs stood at roughly 70% of where they were in 2019.
China now has around 100 international flights per day compared to more than 2,600 before 2020.