The cheapest flight to Helsinki you can get by boooking 24 days before departure.
The most popular airlines on the route Amsterdam - Helsinki: Ukraine International (PS), Lufthansa (LH), KLM (KL).
The cheapest flights you can book on the route Schiphol (AMS) - Vantaa (HEL).
Direct flights last about 2h 20min.
Direct flights available 2 days a week - Monday, Saturday.
Direct flights: Transavia (HV), Finnair (AY), KLM (KL).