How to reach Helsinki:
Sweden: Direct flights Norwegian, SAS, Finnair from Stockholm Direct flights Finnair from Gothenburg, Umeå and Visby
Norway: Direct flights Norwegian, SAS, Finnair from Oslo Direct flights Finnair from Tromssa, Trondheim and Bergen
Denmark: Direct flights Norwegian, SAS, Finnair from Copenhagen Direct flights Finnair from Billund
Iceland: Direct flights Iceland Air, Finnair from Reykjavik
Holland: Direct flights Finnair, KLM from Amsterdam
Belgium: Direct flights Finnair from Brussels
France: Direct flights Finnair, Norwegian, Air France from Paris Direct flights Finnair, Norwegian from Nice Direct flights Finnair from Bordeaux, Lyon
Greece: Direct flights Finnair, Norwegian from Athens
Italy: Direct flights Finnair, Norwegian from Rome and Venice Direct flights Finnair from Bologna, Catania, Naples Direct flights Norwegian from Pisa
Latvia: Direct flights Finnair, Air Baltic from Riga
Lithuania: Direct flights Finnair from Vilnius
Ireland: Direct flights Finnair from Dublin
Austria: Direct flights Finnair, Laudamotion from Wien
Spain: Direct flights Finnair, Norwegian from Alicante, Barcelona, Teneriffe and Malaga Direct flights Finnair from Madrid
Portugal: Direct flights Finnair and Air Portugal from Lissabon Switzerland: Direct flights Finnair from Geneve and Zürich
Poland: Direct flights Finnair, Norwegian from Krakow, Gdansk Direct flights Finnair from Warsaw
UK: Direct flights Finnair, Norwegian, Britisih Airways from London Direct flights Finnair from Edinburgh and Manchester
Germany: Direct flights Finnair, Easy Jet from Berlin Direct flights Finnair, Lufthansa from Frankfurt and München Direct flights Finnair from Hannover, Hamburg, Düsseldorf, Stuttgart
Czech Rebuplic: Direct flights Finnair, Czech Airlines from Prague Estonia: Direct flights Finnair from Tallinn and Tartu
Ukraine: Direct flights Ukraine International from Kiev
And from all these cities and also others You can reach Helsinki with one stop with various airlines, i.e. Lufthansa, KLM, SAS, Norwegian, Air Baltic, Air France, Easy Jet, TAP Air Portugal, Vueling etc. You can find both Star Alliance and One World routes to Helsinki. A good site to check the best flights is www.skyscanner.com