How to get
There is more than 10 airports in Finland for civilians, from south to north. There is also few ports in Helsinki and Turku.
When you come by plain to Helsinki, you can take a taxi or bus from the terminal. Buss number 615 goes right to the city-centrum of Helsinki. There is also other busses from the airport, for those check Matkahuolto's websites.
Indietro: What to do in winter?
Avanti: From Finland