Cheapest return flights from Seattle to Helsinki in April from $527

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 April 2025 (see full year).

Return flights

18 Apr - 25 Apr Icelandair
21 Apr - 28 Apr Icelandair
20 Apr - 04 May Icelandair
24 Apr - 01 May Icelandair
22 Apr - 29 Apr Icelandair
02 Apr - 09 Apr Air Canada
08 Apr - 15 Apr Delta
10 Apr - 17 Apr Delta
04 Apr - 11 Apr Delta

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

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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