Cheapest return flights from Chicago to Helsinki in October from $463

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

Return flights

26 Oct - 02 Nov Scandinavian Airlines
21 Oct - 28 Oct Scandinavian Airlines
06 Oct - 13 Oct Scandinavian Airlines
31 Oct - 07 Nov Scandinavian Airlines
16 Oct - 23 Oct Scandinavian Airlines
05 Oct - 12 Oct Scandinavian Airlines
18 Oct - 24 Oct Scandinavian Airlines
11 Oct - 18 Oct Scandinavian Airlines
02 Oct - 09 Oct Scandinavian Airlines
08 Oct - 15 Oct United

Also check the deals for one-way flights from Chicago 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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