Originally Posted by
OH-LGG
Hi, AY Plus points and voucher upgrades are only for Finnair and Norra operated flights.
Bit OT, but friend of mine was able to upgrade her Y-class BA-operated-AY-coded LHR-SEA with AY+-points via the Finnair mobile app. The funny thing is that she ended up sitting in F as she got the "F" fare code ticket which of course in BA world means First class...