Originally Posted by mitwg

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Lastly, one thing that that is a plus for the KF program is the ability to do Y -> J upgrades with miles. Its not great value in terms of miles spent, but I feel it is much more accessible than CX Y -> J upgrades due to two reason:

-No PE so you can upgrade straight from Y -> J (obviously not a huge issue for CX intra-Asia flights however)
-There's less difference between the super saver Y fares vs. upgradable Y fares, unlike CX where the difference is larger
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