Originally Posted by m600
There are some good T fares ex LHR to JFK in November and December (return, including Saturday night stay and excluding Christmas) for c£640 including taxes; pretty much down to the sale fares level.
Actually, it looks like a lot of N class fares have been brought in in the last week or so, unheralded, for travel up to 30 April - have only been looking at North American destinations so I wonder how widely these are available. But T class supplements on these are currently £200 each way instead of £150 each way in the sale.
[Edited to add:] I had a look at HKG. There's an N class fare there of £342, and the T class supplement is only £150 each way on that one.