Cheapest return flights from Chicago to Helsinki in September from 439€

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

Return flights

30 Sep - 25 Oct Scandinavian Airlines
16 Sep - 23 Sep Scandinavian Airlines
14 Sep - 04 Oct Scandinavian Airlines
28 Sep - 05 Oct Scandinavian Airlines
29 Sep - 06 Oct Scandinavian Airlines
25 Sep - 02 Oct Scandinavian Airlines
06 Sep - 13 Sep Scandinavian Airlines
30 Sep - 07 Oct Scandinavian Airlines
19 Sep - 26 Sep Icelandair
17 Sep - 11 Oct Turkish Airlines
09 Sep - 16 Sep Scandinavian Airlines
08 Sep - 15 Sep Scandinavian Airlines
22 Sep - 29 Sep Scandinavian Airlines
07 Sep - 14 Sep Scandinavian Airlines
15 Sep - 22 Sep Scandinavian Airlines
21 Sep - 28 Sep Scandinavian Airlines
13 Sep - 04 Oct Turkish Airlines
04 Sep - 11 Sep Scandinavian Airlines
24 Sep - 01 Oct United

Also check the deals for one-way flights from Chicago to Helsinki in September.

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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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