How can I get an upgrade on Cathay Pacific?

Booked your flight with Cathay Pacific Airlines and thinking of upgrading your ticket to higher class for a more comfortable journey. Well, Cathay Pacific Airlines offers various modes to upgrade seats, such as with the miles upgrade option, by direct payment, and with the Cathay Pacific upgrade bid option. Moreover, by upgrading their flight to a premium cabin class, one can avail of benefits including priority check-in and boarding, spacious seats, in-flight entertainment, and so on.
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