AirHint found the following cheapest one-way flights from Seattle (SEA) to Helsinki (HEL) in March 2026 (see full year).
One-Way flights
| 29 Mar | Finnair | ||
| 01 Mar | Finnair | ||
| 09 Mar | Finnair | ||
| 10 Mar | Finnair | ||
| 11 Mar | Finnair | ||
| 22 Mar | Finnair | ||
| 23 Mar | Finnair | ||
| 25 Mar | Finnair | ||
| 02 Mar | Finnair | ||
| 03 Mar | Finnair |
Also check the deals for return flights from Seattle to Helsinki in March.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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