Originally Posted by
alanw
Classes for upgrades are not visible. U (nor Z) are not the classes that flight upgrades book into - this is a common bit of misinformation floating around.
Now this was a very usufull piece of information, I was under the impression that was the same thing. Thanks.
Originally Posted by
alanw
You can use them as an indicator, but the buckets are different, and not visible. Normally, if there is Z availability, there will be upgrade availability, but not always. There is no way to see for yourself online if upgrade inventory is available. The only way is to call FB. If you're seeing plenty of seats open in WBC, chances are good they will release upgrade inventory, so keep trying.
FYI - upgrade inventory on NW is very, very limited for FB.
Hmm one of the helpfull FB (one of the few) customer service reps said they could not upgrade my KL 6040 (NW 040) flight and I had to get it changed to a pure NW flight i.e. we're booked on NW 040 now not "through" the KL6040 flightnumber. Are you saying I'm out of luck either way or that I did the right thing getting the change ? Regardless I will call them back every few days so as to try to get the upgrade through.
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