Minimum connection time LHR after QF9 to BA flights

[Doddler]

What’s the T5 airside security line like typically at 5:30-6am on a Saturday?

 

[docjames]

MCT is 90 mins but i usually aim for double that from long haul.

 

[torks]

Other thing to note which is in your favour is that QF9 arrives so early. It is the first flight of the morning that doesnt arrive at T5, the next flight arriving at T3 is 30 mins after QF9, so as long as everything is ontime you'll make it as it shouldn't be busy yet if you stay airside.