I'm finalizing my summer travel plans at the moment. I will be flying into Stockholm. I plan to spend a full two & 1/2 days exploring the city, but after I will be heading off to Oslo and Copenhagen. I recently found out and am very interested in undertaking a side trip by ferry to Helsinki and because it is so close Tallinn. I could spend a night in both cities. To maximize my time, would it make sense to simply fly to Oslo or Copenhagen from Tallinn or Helsinki? A little advice and information on ferry cost would be grateful.
Thanks!
David