Originally Posted by
Seagull689
that is what the internet tells me. Apparently LHR security is a pain, and no TSA pre like back in the US. For a domestic US flight, I show up at the airport 1hr before departure. Doesn't sound like even 2 hrs is smart for LHR to US international flight.. but again, I could be dead wrong on this. I just don't know what I don't know.
And worst case, I have an hour or 2 to kill, I can check out the lounges or get some souvenirs, so I wouldn't be wasting the extra time anyway
Remember that there are a lot of internet advice-givers that only give advice after something goes wrong. I typically arrive at LHR 1.5hr pre-flight and usually have time to swing past a lounge. I could give advice based on the one or two times I've had things go horribly wrong but that is not the case most of the time.