Ok Wesley, thanks, maybe that has made up my mind! I travel from Enniskillen area. I assume though, that we check baggage right through to Japan, in Belfast, as I usually would for connecting flights? I had thought that it just meant those meeting in Heathrow would have to be there 3 hours before, otherwise I felt 2 hrs would be enough to be in HRW since we'd already have checked in for the Japan flight, in Belfast, if I am explaining myself properly!!