Cheapest return flights from Helsinki (HEL) to Oslo (OSL), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
17 Sep 21 Sep airBaltic
24 Sep 29 Sep airBaltic
11 Sep 13 Sep airBaltic
08 Sep 15 Sep Norwegian
Direct Flight
17 Sep 21 Sep Norwegian
Direct Flight
17 Sep 23 Sep Norwegian
Direct Flight
04 Sep 21 Sep Norwegian
Direct Flight
04 Sep 23 Sep Norwegian
Direct Flight
04 Sep 15 Sep Norwegian
Direct Flight
03 Sep 21 Sep Norwegian
Direct Flight
18 Sep 05 Oct Norwegian
Direct Flight
18 Sep 08 Oct Norwegian
Direct Flight
17 Sep 05 Oct Norwegian
Direct Flight
17 Sep 08 Oct Norwegian
Direct Flight
24 Sep 14 Oct Norwegian
Direct Flight
24 Sep 05 Oct Norwegian
Direct Flight
24 Sep 11 Oct Norwegian
Direct Flight
24 Sep 08 Oct Norwegian
Direct Flight
24 Sep 15 Oct Norwegian
Direct Flight
28 Sep 14 Oct Norwegian
Direct Flight
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deals for one-way flights from Helsinki to Oslo in September.

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Updated May 21, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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