Louise - many thanks for giving us a heads up on this. I've booked my Christmas TATL using my Amex companion voucher. Was surprised to see just how much availability there was in CW - and quite a lot in First as well. One flight on my regular run had 7 first reward seats available - but I wasn't tempted! Booked the upper deck instead.

Interesting to see BA's approach to their carrier charges. UK>US round trip the charge was £289, whilst a US>UK round trip on the same dates the charge was £641.