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

Return flights

12 Jun - 23 Jun	Norwegian	direct
12 Jun - 14 Jun	Norwegian
12 Jun - 24 Jun	Norwegian	direct
24 Jun - 01 Jul	airBaltic
12 Jun - 30 Jun	Norwegian	direct
12 Jun - 25 Jun	Norwegian	direct
12 Jun - 01 Jul	Norwegian	direct
12 Jun - 14 Jun	Norwegian	direct
24 Jun - 30 Jun	Norwegian	direct
24 Jun - 25 Jun	Norwegian	direct
24 Jun - 01 Jul	Norwegian	direct
24 Jun - 08 Jul	Norwegian	direct
24 Jun - 06 Jul	Norwegian	direct

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

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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Cheapest return flights from Oslo to Helsinki in June from 109€

Return flights