Originally Posted by
KARFA
Yes there will be. If you look at the collecting avios page on BA.com and enter the details for your flight you can compare the difference. Enter the airline as the marketing airline as you earn based on that. Avios earning will be higher for the BA codeshare.
Thank out KARFA. I found there is roughly 2500 avios different but definitely not worth 150eur extra for a "BA" code.
And may I confirm that a QR code BA operated flight count towards eligible flights?