Originally Posted by
Surface Interval
Later this month I am on an advantage award booking that is booked and paid as first, but the last segement is in buiness as there was not first available. JFK-FRA-SIN-stopover-BKK. The stopover is 2 days. Will they allow first class lounge access when I depart on what is a paid F seat (although ticketed as biz)?
No, they won't allow use of the First Class Lounge when you depart.
Your boarding pass on the day of departure is the only thing that matters - and that's in Business Class.
You will be invited to the Silverkris Lounge.