Bus #615 takes you to Elielinaukio Square near the railway station, i.e. to the very center of the Old Town (travel time - 40-55 minutes, ticket price - 5 EUR). In addition, buses #415 and 451 arrive in the same area. They run from 6:00 until about 01:00 with an interval of 15 minutes.
Finnair shuttle. They run every 20 minutes, departing from platform 10 near the Finnair terminal (ticket price is about 7 EUR and will take you to the city in 40 minutes).
Taxi - count on 45-50 EUR (the amount including tips).
