Originally Posted by
bgriff
You can't use Delta miles to upgrade on other SkyTeam carriers...
I thought it is possible with certain ST airlines.
http://www.skyteam.biz/en/Customer-a...grade-Program/
I am too looking for upgrade award possibility on VN, but it seems impossible using SM.
Is there anyway to get around this? Am looking for a one-way upgrade on VN for SIN-SGN.