Tram 4 

Vyökatu stop, (walking distance about 400 m from terminal)
 

Tram 5 

Tram 5 drives to the terminal.

Single tram tickets can be purchased e.g. using the mobile app HSL Mobiililippu, or HSL ticket machines nearby the terminal. Ferry passengers can buy tickets from Viking Line ferries.

Connections

Railway station (2,5 km) Tram 4 to Lasipalatsi (short walk to the railway station).
Kamppi bus terminal (3,2 km) Tram 4, get off at stop Lasipalatsi and walk to Kamppi shopping centre.
Helsinki airport (22,6 km) Tram 4, get off at stop Lasipalatsi and walk to the Railway station, from there take either bus 615, 615T, Finnair City Bus or trains I or P.

Katajanokka Terminal: Connections