|Subject: Re: Taxi from airport to downtown Helsinki|
According to my two year old Airport Transit Guide, it's about $25 ($150 FIM) for a cab from the airport to Helsinki with a night surcharge of about $2 (10 FIM). There is also a Finnair Bus that runs every 25 minutes for about $5 that takes you to the Hotel InterContinental and the Central RR Station (a building of real interest) with other request stops. Yellow Line Airport Taxi is about $12 with three sharing.
There is probably more up to date stuff on the net but this might give you some idea. Enjoy! I found Helsinki the most pleasant surprise of our Scandinavian holiday some years ago. Would return in a heartbeat.
Cheers! Jo,in Sunnyvale Northern California