Originally Posted by
ung1
I didn't realize the flight booked was that far out in advance. Obviously then it's difficult to say what upgrade availability will be like for a flight that doesn't exist yet. But SIN is one of those routes where the F cabin is the first to get sold out, and the Y cabin the last!
Just checked the whole of November. Reward upgrade to F currently available on every day but to J only on 5 days of the month.