Originally Posted by
sfo3388
Please check the most recent update on United.com:
Star Alliance Upgrade Award | United Airlines
For EVA, only K class (the most expensive premium economy class) is eligible for Star Alliance Upgrade using United miles. Y and B are not eligible anymore.
Hey sfo3388, I don’t think this explain why short-haul flight within Asia can still be upgraded with original fare class being Y/B.
I don’t know if they intentionally do this or it’s just an implementation error, but I’m leaning towards it being a bug, as other carriers’ SAUA policy still says Y/B being upgradeable, and SAUA is a alliance-level thing (so they should be consistent)