Cheapest return flights from Washington to Helsinki in October from $392

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

Return flights

12 Oct - 25 Oct Icelandair
12 Oct - 19 Oct Scandinavian Airlines
30 Oct - 05 Nov Scandinavian Airlines
17 Oct - 20 Oct Scandinavian Airlines
08 Oct - 15 Oct Lufthansa
07 Oct - 14 Oct Lufthansa
02 Oct - 09 Oct Lufthansa
06 Oct - 13 Oct Lufthansa
03 Oct - 10 Oct Lufthansa

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

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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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