Originally Posted by
CollegeFlyer
Under the current UA rules (and from what I understand, also the new rules for next year, although there may be a few exception routes--I find the new rules quite confusing), Regional Upgrades do not apply within the Asia region. They are within North America/Hawaii only. And there are no complimentary elite upgrades within Asia either.
I believe routes now being served by 2-cabin CO aircraft are upgrade-eligible (HKG-SIN, HKG-SGN), while anything on UA's bigger birds out of NRT would require SWU.