Cheapest return flights from Washington to Helsinki in October from $479

AirHint found the following cheapest return flights from Washington (IAD) to Helsinki (HEL) in October 2025 (see full year).

Return flights

27 Oct - 03 Nov Lufthansa
30 Oct - 06 Nov Air France
28 Oct - 04 Nov Lufthansa
24 Oct - 15 Nov Lufthansa
23 Oct - 30 Oct Lufthansa
26 Oct - 15 Nov Lufthansa
29 Oct - 05 Nov Lufthansa
26 Oct - 02 Nov Lufthansa
26 Oct - 22 Nov Lufthansa
24 Oct - 31 Oct Lufthansa
25 Oct - 01 Nov Lufthansa
31 Oct - 07 Nov Lufthansa

Also check the deals for one-way flights from Washington to Helsinki in October.

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