Travel agency Trip.com said as of 2.30 p.m. Friday, flight searches surged 95 times from the same time last week and bookings jumped 50% on its website.
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.
Border agencies must not arrange tourism activities that involve obscenity, gambling or drug trafficking.
The jet has not flown commercially in China since March 2019, when it was grounded after two fatal crashes.
Tickets to some scenic spots are back to full price.
Prepared meals are regarded as an alternative solution for hotels to reduce costs and drive revenue.
The emerging sector was most popular among the Post-90s age group, which accounted for 41.2% of the total.