FROM THE AIRPORT: From Helsinki-Vantaa airport take the local bus no 615 to the Helsinki railway station (terminus, journey 35-45min, 4e). Alternatively Finnair City Bus to the Hki railway station (terminus, journey 35min, 5.90e). From the railway station the tram no 3T or a walk (10min) to the Market Square, Kauppatori, where the ferry leaves. You can use the same ticket from the bus 615 on the tram & ferry.
BY BUS: The long distance buses arrive to Kamppi terminal. From Kamppi a walk to Lasipalatsi tram stops, the tram no 4 or 7 to the Market Square (7min). Most of the local or regional buses arriving to Helsinki have their terminus next to the Hki railway station.
BY TRAIN: From the Helsinki railway station take the tram no 3T or walk (10min) to the Market Square.
BY FERRY: The Suomenlinna ferry of Helsinki Region Transport leaves from the Market Square, Kauppatori. The ferry circulates every day 1-4 times/hour through the year from 6/6.20 am morning till 2/2.20am in the night. The ticket costs 2e bought from the ticket machine in the quay (valid in all Hki for 1h), or a Suomenlinna ticket 3.80e (valid on the ferry for 12h). In the summer time the JTL water bus circulates from the Market Square to Suomenlinna Info Centre. Round trip ticket costs 6.50e.