Originally Posted by
guv1976
Another option -- which would cost fewer Avios -- would be HEL-TXL-VCE on Air Berlin, for which there are no surcharges when redeeming Avios. There are still taxes, however, and I'm not sure how they would compare on an AB redemption via TXL with the RFS co-pays on BA via LON.
BA via LON will require a change of airport. Furthermore, Avios is based on distance, and TXL is much more direct so I would expect the Avios to be lower
Searching on ba.com:
BA via LHR-LGW - 15000 Avios + £35.00 one way (but may be EUR 35 for Finnish members?)
AB via TXL - 12000 Avios + £24.30 one way