AirHint found the following cheapest one-way flights from Oslo (OSL) to Helsinki (HEL) in May 2026 (see full year).
One-Way flights
| 12 May | Norwegian | direct | |
| 19 May | Norwegian | direct | |
| 04 May | Norwegian | direct | |
| 31 May | Norwegian | direct | |
| 21 May | airBaltic | ||
| 15 May | airBaltic | ||
| 14 May | airBaltic | ||
| 09 May | airBaltic | ||
| 10 May | airBaltic | ||
| 29 May | airBaltic |
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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