Cheapest one-way flights from Oslo to Helsinki in May from $41

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

One-Way flights

05 May Norwegian direct
26 May Norwegian direct
13 May airBaltic
14 May airBaltic
15 May airBaltic
03 May airBaltic
21 May airBaltic
16 May airBaltic
13 May Norwegian direct
15 May Norwegian direct

Also check the deals for return 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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