If the flight to Sanya is cancelled, which affects the previously booked return ticket and needs to be changed, who will be responsible for this part of the cost?

It depends on where you made the reservation, and the rebooking and cancellation policies of major booking platforms are different.

For connecting tickets, you can contact the airline to which the ticket belongs or the booking platform to change the ticket, and you will bear the ticket change fee for the segmented booking by yourself (the two flights are not directly related)...<br/><br/>To help you, please click Green adoption!

If it is the same airline, the airline is responsible. If it is not the same company, it is a bit troublesome. You can contact the website where you purchased the ticket or the customer service of the airline.

If you book a round-trip flight at the same time, you can contact the relevant platform to change your booking.

Airline tickets are very interesting things. Generally, you don’t see which one is cancelled, and the other is free, but there is one that is possible<br/>That is, you bought the same airline ticket at the time and it was If you buy a combined ticket at one time, that is, the same ticket number, then you can get a conditional free refund<br/>So, first check whether your round-trip ticket is the same airline, and the ticket number issued Is there only one? If so, you can call the airline to apply. If not, there is basically no way to do it. You can only be responsible for it yourself. Just imagine, you go to one airline and return to another Airline, the company you returned to How could you know that the airline you went to was cancelled? Even if it was cancelled, it has nothing to do with them<br/>If you have any questions, you can ask them.

If two flights are booked separately, the airline will not take care of it. Just call the airline.