Cheapest one-way flights from Oslo to Helsinki in September from 43€

AirHint found the following cheapest one-way flights from Oslo (OSL) to Helsinki (HEL) in September 2025 (see full year).

One-Way flights

24 Sep Norwegian direct
23 Sep Norwegian direct
30 Sep Norwegian direct
22 Sep Norwegian direct
25 Sep Wizz Air
28 Sep Scandinavian Airlines
25 Sep Norwegian direct
17 Sep Norwegian direct
19 Sep Ryanair
26 Sep Norwegian

Also check the deals for return flights from Oslo to Helsinki in September.

Skyscanner

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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