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

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

Return flights

26 May - 27 May Norwegian direct
11 May - 27 May Norwegian direct
11 May - 13 May Norwegian direct
13 May - 27 May Norwegian direct
13 May - 19 May Norwegian direct
12 May - 27 May Norwegian direct
12 May - 13 May Norwegian direct
12 May - 19 May Norwegian direct
04 May - 13 May Norwegian direct
04 May - 19 May Norwegian direct
13 May - 01 Jun Norwegian direct
12 May - 01 Jun Norwegian direct
26 May - 08 Jun Norwegian direct
26 May - 12 Jun Norwegian direct
26 May - 01 Jun Norwegian direct
20 May - 08 Jun Norwegian direct
20 May - 01 Jun Norwegian direct
26 May - 09 Jun Norwegian direct
20 May - 09 Jun Norwegian direct
28 May - 08 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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