Just booked JFK-LHR in F for less than the cost of discounted J. Available on multiple flights. I checked the end of December and was amazed. Also booked return on BA in J using the IB codeshare at just a bit over the price for AA J (I love leaving from LHR T5, T3 can be such a pit and Galleries is much nicer than Admirals even after the refurb). AA F would still have been a bit cheaper but on a day flight I'd rather do BA J than AA F. Anyone know where this sale is mentioned?