Upgrade at your own expense, depending on the route and original location, the price is different.
This flight is oversold in economy class. Upgrade to another class.
Holding a universal card will increase the probability of oversold upgrade.
With the membership card of Cathay Pacific Kaier Polo Club, there is a great chance of upgrading at any level (the higher the level, the greater the chance of upgrading) (as long as there is room in the previous cabin, it will be upgraded, and domestic departure can be ignored).
The price of the selected economy class is actually not high, and it is worthwhile to spend money on it.
I hope I can help you! Seek adoption