Originally Posted by
lkrt
While this is on the wrong board (Finnair), you should be able to access all oneworld business class lounges (Qantas, Cathay, BA and AA if open) with a oneworld business class ticket.
I did not even see this was under Finnair. I just searched LHR/T3. Sorry. Good to hear though on accessing even on a 1.5 hour nothing special J ticket. Wanting to try QF & CX and even the AA lounge actually looks nice there.