SK always offers the visit scandinavia pass if you arrive from anywhere outside the DK/SE/NO/FI on a *A carrier. Its 80$ a segment plus tax, books in H class. Can be purchased on landing or in advance by the TA that issued the ticket, availbility permitting. Great feature. I used it once when I was in HEL on work and wanted to visit my GF in ARN. Landed in HEL, walked over to the ticket desk and was in the aircraft to ARN in 35 mins. ^