Originally Posted by
emofeng
Thank you all for the comments. I will fly CNS-HKG-SFO! This will all be in J, but if HKG-SFO has F availability, I can use my AS miles to upgrade right? I'm using AS miles for the redemption.
Probably better answers on the AS forum to that question!
But I'd reckon that you'll need to book an F award all the way CNS-SFO and settle for a J seat for the first leg..