Originally Posted by
entropy
LHR "works" simply because the market expects it (so many flights arrive in the AM, hotels not check-in-able yet and the segment they are targeting is often heading to meetings. That and all the other carriers there offer it.
Correct ... and LHR is actually a shared lounge, not a United-operated facility like SFO. Currently it is available to UA, AC, and SA business/first passengers ... possibly other *A in the future.