Cheapest return flights from Oslo to Helsinki in August from $100

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

28 Aug - 03 Sep Norwegian direct
28 Aug - 16 Sep Norwegian direct
28 Aug - 17 Sep Norwegian direct
28 Aug - 04 Sep Norwegian direct
28 Aug - 10 Sep Norwegian direct
18 Aug - 03 Sep Norwegian direct
18 Aug - 04 Sep Norwegian direct
20 Aug - 03 Sep Norwegian direct
20 Aug - 04 Sep Norwegian direct
19 Aug - 03 Sep Norwegian direct
12 Aug - 21 Aug Norwegian direct
12 Aug - 20 Aug Norwegian direct
12 Aug - 27 Aug Norwegian direct
05 Aug - 21 Aug Norwegian direct
05 Aug - 20 Aug Norwegian direct
12 Aug - 19 Aug Norwegian direct
12 Aug - 26 Aug Norwegian direct
05 Aug - 19 Aug Norwegian direct
18 Aug - 21 Aug Norwegian direct
18 Aug - 20 Aug 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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