We have status on US and I believe enough points to fly business to BKK in early Nov for a conference but need to stop in London on way back for 2 days. Depart from CLT should we head east or west? On a previous trip I had done a stopover in London for a week but was told recently that this was not applicable any more. Before I call the airlines I want to have an idea of what I should be looking at. Thank you!!