Upgrade Seat Option by CheapAirlines Fares published on 2022-09-12T05:15:27Z To upgrade the flight tickets, you will have to refer to the first page of the official website. That way, you will get an authentic start to the process of upgrade is very important. Also, if you are bidding for the upgrade, then also it becomes necessary that you follow the steps for the same that the official website demands you to do. You just need to remember that only when you have booked your flight tickets via the official website is when you will be allowed to upgrade. All the upgrade seat options will be given there. For more information- https://cheapairlinesfares.com/blog/how-do-i-get-an-upgrade-on-china-airlines/