Cheapest one-way flights from Helsinki to Oslo in December from $57

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

One-Way flights

04 Dec Norwegian direct
06 Dec airBaltic
24 Dec airBaltic
21 Dec Norwegian direct
29 Dec Norwegian direct
23 Dec Norwegian Air Sweden AOC
22 Dec Norwegian Air Sweden AOC
28 Dec Norwegian direct
22 Dec Norwegian direct
30 Dec Norwegian Air Sweden AOC

Also check the deals for return flights from Helsinki to Oslo 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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