I hope I'm not repeating a topic here but this issue is really starting to annoy me. It's not on that only 2 carriers from both Britain and Ireland can fly to America from LHR. BA, VS, UA, AA. I find it annoying that to often get cheaper fares you have to travel via the European cities.
I hope that this issue gets sorted soon and that we see a increase in the airlines that can fly transatlantic out of LHR.