Im flying from Heathrow Terminal 5, can i use Terminal 4 lounge if i have a pass?
Well personally i think it is completely up to you. You can go to Terminal 4 if you wish, but you will risk not finding out about boarding gates, delays etc. It all comes down to what you would prefer, I would usually get to the airport 2 or 3 hours beforehand, so if my flight is in another terminal I can spend some time in the lounge in T4 with plenty time to spare. Sometimes long check in lines/ security check lines may slow you down a little, in those cases you wouldnt want to risk missing your boarding gate or anything just to go to the lounge.
