Originally Posted by GUWonder
I've been in similar situations with AA, UA, CX, SK, BA and other airlines at LHR, but it's BAA policy (more than anything).
I was in a similar situation once- had arrived by an SK flight from SEA via CPH, did not have time to take a shower in CPH and was told by SK LHR lounge that they can not allow any passenger to enter unless they have a boarding pass.
In fact, EuroBonus lounge rules clearly say that all EuroBonus Gold passengers arriving on SK flights can use any SK lounge anywhere except in LHR, where BAA prohibits such access.