Join Date: Feb 2009
Location: From ORK, live LCY
Programs: BA Silver, M&M*G, HH Gold, ABP, Seigneur des Horaires des Mucci
Posts: 14,919
Welcome to FlyerTalk!
Have you tried any research of your own yet? Many people on this forum will look more favourably on people who make a little effort before landing a question on the board.
I know British Airways is in the habit of offering upgrades from premium economy to business for £399 per sector when they have space, but they don't fly to BNE so you'd have to go to SIN or possibly and pick up another airline there.
In any case, are you looking for one-way or round-trip? And what are your expected dates of travel?