Originally Posted by
spherehopper
... and the BA flight LAX-LHR codeshared to AY so they'll all earn 50% of miles instead of the microscopic share of fare paid on the DONE4.
The BA operated / AY-coded LAX-LHR will likely credit as if it were a BA flight.
Buried deep down in the
BA Club T&Cs under the Finnair section:
For transatlantic flights marketed by AY but operated by British Airways, awards will be as per the British Airways awards
. NB the poor wording is BA's, rather than my own.
If your schedule allows, a workaround would be to book the AY operated LAX-HEL.