Cheapest return flights from Oslo to Helsinki in August from $107

AirHint found the following cheapest return flights from Oslo (OSL) to Helsinki (HEL) in August 2025 (see full year).

Return flights

25 Aug - 08 Sep Norwegian direct
26 Aug - 08 Sep Norwegian direct
27 Aug - 08 Sep Norwegian direct
20 Aug - 08 Sep Norwegian direct
12 Aug - 20 Aug Norwegian direct
12 Aug - 28 Aug Norwegian direct
05 Aug - 19 Aug Norwegian direct
05 Aug - 20 Aug Norwegian direct
25 Aug - 28 Aug Norwegian direct
26 Aug - 28 Aug Norwegian direct
27 Aug - 28 Aug Norwegian direct
20 Aug - 28 Aug Norwegian direct
18 Aug - 19 Aug Norwegian direct
18 Aug - 20 Aug Norwegian direct
25 Aug - 04 Sep Norwegian direct
25 Aug - 10 Sep Norwegian direct
25 Aug - 11 Sep Norwegian direct
25 Aug - 12 Sep Norwegian direct
26 Aug - 04 Sep Norwegian direct
26 Aug - 10 Sep Norwegian direct

Also check the deals for one-way flights from Oslo to Helsinki in August.

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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