Cheapest return flights from Seattle to Helsinki in April from $786

AirHint found the following cheapest return flights from Seattle (SEA) to Helsinki (HEL) in April 2026 (see full year).

Return flights

29 Apr - 06 May Finnair direct
22 Apr - 29 Apr Finnair
14 Apr - 21 Apr Finnair
27 Apr - 04 May Finnair
06 Apr - 13 Apr Finnair
13 Apr - 20 Apr Finnair
16 Apr - 23 Apr Finnair
20 Apr - 27 Apr Finnair
23 Apr - 30 Apr Finnair
26 Apr - 03 May Finnair
30 Apr - 07 May Finnair
18 Apr - 25 Apr Finnair
12 Apr - 19 Apr Finnair
17 Apr - 24 Apr Finnair
25 Apr - 02 May Finnair
24 Apr - 01 May Finnair
28 Apr - 05 May Finnair

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

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