据我所知，您要是在起飞前很长时间，比如说两三天，退票不收手续费，也就是说，您可以收回全额票款。

As I know, if you want to refund a ticket before departure long enough, say two or three days, you will not be changed, that is to say, you can get back all your money.

youdao

退票没有退票罚金， 但或需付手续费。

Refund without penalty permitted at any time.

youdao

在始发站，列车开车前要求退票，则退还全部票价，只扣除手续费。

At the departure station, if the application for refund is made before the train leaves, the whole fare will be returned with only service charge deducted.

youdao

在始发站，列车开车前要求退票，则退还全部票价，只扣除手续费。

At the departure station, if the application for refund is made before the train leaves, the whole fare will be returned with only service charge deducted.

youdao