The decision will affect flights by Xiamen, Air China, China Southern Airlines and China Eastern Airlines from Sept. 5 to Sept. 28.
This year the current reduction in capacity between October and November is around 16%.
The flights would be fast-tracked and, if the airports in China can accommodate them, could launch as soon as September.
The move by Hainan marks the start of the busy student season.
Cathay Pacific's website showed it would increase flights, including planned daily flights, to Taipei, Manila, Bangkok, Tokyo, Jakarta, Sydney and London from October.
China’s international travel is still down 95%.
Trial production should begin in 12 to 18 months after Guanglian obtains land use rights.
Flights averaged about 9,931 per day in July, a month-on-month increase of 42.16%.
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