Answer:
Third degree price discrimination
Step-by-step explanation:
Third degree price discrimination is when different customers are charged different price when purchasing the same product. The customers are differentiated on the basis of sex, age, location, and time of use.
In this scenario where large airlines create an incredibly complex pricing system designed to fill as many seats as possible, the last customer that comes to buy a ticket is charged at a higher price.
This exemplifies a third degree price discrimination that is based on time of use.
However the internet has made it easier to compare prices resulting in failure of this strategy.