Well, sorry, I kind of didn't express myself clearly. I got the mileage figure from Polynesian Airlines in Tonga when I booked the ticket. There was no availability on AY ARN-HEL-TXL on any suitable dates for me.

Anyway, what I wanted to know from you route optimisers out there: are there any other routes that would get closer to the 34K miles than the one I have? This is purely from a mileage run and curiosity point of view.