AY: ARN-HEL-BKK £1038 Business all in
Found on Google Flights, seems to have a 6/7 day minimum stay.
Combination of A319/A321 on SH and an amazing opportunity to sample the new A350 J class for 10 hours as well.
Example dates:
https://www.google.co.uk/flights/#se...c=b;a=ONEWORLD