FlyingtoFlyAway

What fare basis (miles/points multiplier) does your domestic ticket become when you upgrade with cash at check-in? Does the original booking class matter?

Last year, when I upgraded this way to Y fare domestic economy to Premium Class, these became 150% multiplier but no 400 premium point boarding. (So I guess this was "Fares 9" in the simulator.) But this week, I paid at check in to upgrade a K fare domestic to Premium Class, and I only ended up with an S class according to my ANA account and 80% miles.

So, I asked at the Diamond help desk in CTS lounge. After the agent called to check, she told me that the cash payment upgrade at check in adds 50% of the original basis, so in this case it would be K class 30% + 50% = 80%. This matches what I earned on the flight--but it does not match any of the 13 domestic fare classes. Strange.

armagebedar

Your original domestic fare type matters — what was it? (e.g. Business Kippu, Super Value 21, Flex, etc.)

FlyingtoFlyAway

My original booking class was K = Fares 13 category (Explore Japan Super Value, something like that). Interesting that it works this way, good to know.

armagebedar

Yes, as you found out the original fare basis determines the “base” to which the +50% Premium Class bonus is added. JAL works the same way with First Class and Class J.

FlyingtoFlyAway

Thanks for confirming, good to know.