Originally Posted by
mmxbreaks
Would still be eligible:
"Fly with us before 31 December 2017 and you’ll collect double Avios on every British Airways flight, including services with a BA flight number on our partner airlines American Airlines, Finnair and Iberia."
Here's an example in November:
https://www.kayak.co.uk/flights/BCN-...eturn=20171127
Lots of other availability, too.
At least, that's my understanding of it. My booking is an 075 ticket (not 125), but all flights are BAxxxx, so I'd call that "BA flight number". Should be eligible [for double Avios promo 2017] (although not for me, as I'm flying in January, after the cut-off point).