Cheapest return flights from Oslo to Helsinki in May from $121

AirHint found the following cheapest return flights from Oslo (OSL) to Helsinki (HEL) in May 2026 (see full year).

Return flights

04 May - 19 May Norwegian direct
18 May - 19 May Norwegian direct
12 May - 19 May Norwegian direct
31 May - 16 Jun Norwegian direct
31 May - 02 Jun Norwegian direct
18 May - 02 Jun Norwegian direct
19 May - 02 Jun Norwegian direct
04 May - 22 May Norwegian direct
04 May - 15 May Norwegian direct
18 May - 22 May Norwegian direct
12 May - 22 May Norwegian direct
12 May - 15 May Norwegian direct
19 May - 22 May Norwegian direct
31 May - 10 Jun Norwegian direct
10 May - 19 May Norwegian direct
21 May - 02 Jun Norwegian direct
17 May - 02 Jun Norwegian direct
21 May - 10 Jun Norwegian direct
15 May - 02 Jun Norwegian direct
14 May - 02 Jun Norwegian direct

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

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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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