China Southern Airlines implements a 40% discount on flight tickets for new teachers. This is actually a business strategy to attract passengers. The airline does not actually make a profit, because when the full capacity of the flight exceeds 90% on a certain day, it will stop selling the discount on the same day. Even at peak times, the full rate of flights rarely exceeds 90%. There are seats available
The average occupancy rate of the airline's flights throughout the year is 50%
why not promote them at a discount.