Szia,

esetleg olcsobb egy orosz busszal vagy mini busszal Helsinkibol, de lehet hogy nem er meg, 80 euro Turkubol oda-vissza egy jo ar.

"For travel from Helsinki (Finland), Russian minibuses depart from the Oktyabrskaya Hotel (opp Moskovsky train station) around 10 PM and arrive behind Tennispalatsi at Eteläinen Rautatiekatu 8, one block away from Kamppi, early in the morning. Departures back start around 10 AM in the morning through 8 PM. Other minibuses are parked along Fredrikinkatu, with the departure time and price often posted on them. The trip costs € 15 to 25 euros, depending on how much the driver wants to charge, making this by far the cheapest option, but the buses are cramped and uncomfortable. Do not expect drivers to speak anything but Russian. The border crossing time might be substantially longer than with regular buses."

http://wikitravel.org/en/Saint_Petersburg

Turkubol Helsinkibe fapados busz, Onnibus, jegyet kell elore megrendelni neten.
http://www.onnibus.fi/en/turku-helsinki/