It is known that there has been a phenomena of hidden discount in our airplane ticket price.

众所周知，我国机票价格一直以来存在着暗折暗扣的现象。

youdao

But same airplane ticket, if chooses after the scheduled flight launching handles returns a ticket, returns a ticket spends the charge standard to become the entire ticket price 10%, 20%, 25%.

而同样一张机票，如果选择在航班起飞后办理退票，退票费收费标准就变为全票价的10%、20%、25%。

youdao