Originally Posted by
AJA_
..................Note if you are travelling on Qatar from T4 you will also have access to the Malaysia Airlines Golden lounge.
Yes, well worth a visit.
With so much focus on T5 and T3, it’s often easy to forget that for around 20 years, T4 was of course home to BA at LHR. Today it can sometimes seem an ‘unheralded’ terminal, but one
major benefit is that - amongst the vast array of lounges (over 40 in all, AFAIK ?) spread across the entire airport, two of the very best just happen to be in T4 : Qatar, and (the F class section of) the Malaysian lounge.