Originally Posted by
forumpersona999
I got caught out by this so many times now I am keeping a cheat sheet in Microsoft OneNote:
For Cathay Pacific, only fare classes Y, B, H, K and M are eligible for Economy to Premium Economy Class Upgrade Awards. Only fare classes W and R are eligible for Premium Economy to Business Class Upgrade Awards. Upgrade Awards are only applicable from Economy Class to Business Class for flights without Premium Economy Class. Only fare classes J, C, D and I are eligible for Business to First Class Upgrade Awards.
Awesome! This is exactly the data I wanted... Also keeping it in onenote!