Cheapest return flights from Seattle to Helsinki in May from 777€

Best time to book flights for Seattle (SEA) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Helsinki (HEL) in May 2025 (see full year).

Return flights

05 May - 12 May Delta
02 May - 09 May Delta
08 May - 15 May Delta
26 May - 26 Jun Turkish Airlines
14 May - 21 May Delta
26 May - 26 Jun Finnair direct
11 May - 18 May Delta
20 May - 27 May Delta
23 May - 30 May Delta
26 May - 02 Jun Delta
29 May - 05 Jun Delta
17 May - 24 May Delta

Also check the deals for one-way flights from Seattle to Helsinki in May.

Skyscanner

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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