I’d probably say MAD and HEL. Whilst you won’t get T5 if flying direct AY to HEL, but then again why would one want the T5 Galleries First lounge when you have the fantastic CX F and Qantas lounges in T3?! Also AY Business Lounge is excellent and you stand a high chance of trying our their AirLounge seat which I am currently sitting in as we type on my way back to LHR.

Also you stand to earn 160 TPs too. There’s a circa £270 fare being sold exclusively via OTAs at the moment for LHR-HEL-LHR (BA Codeshare, AY operated), I’d honestly do this if I were you.

PS - AY’s new seat is AMAZING!