Cheapest return flights from Helsinki to Oslo in August from $136

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

Return flights

27 Aug - 15 Sep Norwegian direct
27 Aug - 17 Sep Norwegian direct
27 Aug - 09 Sep Norwegian direct
27 Aug - 02 Sep Norwegian direct
27 Aug - 16 Sep Norwegian direct
27 Aug - 10 Sep Norwegian direct
27 Aug - 11 Sep Norwegian direct
27 Aug - 03 Sep Norwegian direct
26 Aug - 15 Sep Norwegian direct
29 Aug - 15 Sep Norwegian direct
27 Aug - 29 Aug Norwegian
29 Aug - 31 Aug airBaltic
25 Aug - 27 Aug airBaltic
24 Aug - 26 Aug Scandinavian Airlines
28 Aug - 30 Aug airBaltic
28 Aug - 31 Aug airBaltic
29 Aug - 31 Aug Finnair direct
26 Aug - 26 Aug Norwegian
26 Aug - 30 Aug Norwegian
28 Aug - 30 Aug Finnair direct

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

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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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