Li Hui decided to return home long ago, but the "cheap tickets" she had booked twice had their flights cancelled. Now, she can't find any ticket with a price of less than 40,000 yuan. The tickets she might be able to book are almost all from 60,000 upwards. Of course, these tickets are in the hands of some scalpers. Many Chinese students around her who want to return to China are booking high-price tickets through scalpers.
The article is from June. Those were flights she had booked in February/April for May/June. They got canceled because of the pandemic. Same for the next flight. And all others after that. The airline couldn't reschedule her for the next flight because it wasn't flying.