Originally Posted by
COIAHLGW
The LHR Star Alliance lounge is in Terminal 1, however the Virgin flight will depart from Terminal 3. Therefore they probably won't even let you through security in T1 - or even if they do, you face a trek back to T3.
To use a *A lounge as a *G you have to be departing on a *A flight—metal, not code. Even if he could physically get to the *A LHR lounge, I don't think they'd let him in.