Cheapest return flights from Oslo to Helsinki in August from $98

Best time to book flights for Oslo (OSL) to Helsinki (HEL) flights at AirHint

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

Return flights

12 Aug - 29 Aug Norwegian direct
12 Aug - 26 Aug Norwegian direct
22 Aug - 11 Sep Norwegian direct
22 Aug - 29 Aug Norwegian direct
28 Aug - 11 Sep Norwegian direct
28 Aug - 29 Aug Norwegian direct
10 Aug - 29 Aug Norwegian direct
11 Aug - 29 Aug Norwegian direct
14 Aug - 29 Aug Norwegian direct
17 Aug - 29 Aug Norwegian direct
12 Aug - 25 Aug Norwegian direct
12 Aug - 15 Aug Norwegian direct
31 Aug - 11 Sep Norwegian direct
31 Aug - 18 Sep Norwegian direct
22 Aug - 05 Sep Norwegian
28 Aug - 05 Sep Norwegian
17 Aug - 05 Sep Norwegian
28 Aug - 14 Sep Norwegian
22 Aug - 07 Sep Norwegian
28 Aug - 18 Sep Norwegian

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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