Cheapest one-way flights from Oslo to Helsinki in December from 86€

Best time to book flights for Oslo (OSL) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest one-way flights from Oslo (OSL) to Helsinki (HEL) in December 2025 (see full year).

One-Way flights

29 Dec airBaltic
30 Dec airBaltic
28 Dec airBaltic
28 Dec Finnair direct
29 Dec Finnair direct

Also check the deals for return flights from Oslo to Helsinki in December.

Skyscanner

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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