Cheapest return flights from Chicago to Helsinki in October from 391€

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

Return flights

20 Oct - 27 Oct Scandinavian Airlines
29 Oct - 05 Nov Scandinavian Airlines
12 Oct - 19 Oct Scandinavian Airlines
23 Oct - 30 Oct Scandinavian Airlines
11 Oct - 18 Oct Scandinavian Airlines
14 Oct - 21 Oct Scandinavian Airlines
05 Oct - 12 Oct Scandinavian Airlines
17 Oct - 24 Oct United
02 Oct - 09 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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