Cheapest return flights from Helsinki to Oslo in December from $214

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

Return flights

30 Dec - 08 Jan Scandinavian Airlines
31 Dec - 01 Jan Finnair
30 Dec - 08 Jan Finnair direct
29 Dec - 18 Jan Norwegian Air Sweden AOC
29 Dec - 31 Dec Scandinavian Airlines
29 Dec - 07 Jan Scandinavian Airlines
30 Dec - 01 Jan Finnair
30 Dec - 04 Jan Finnair direct
31 Dec - 04 Jan Finnair direct
29 Dec - 04 Jan Scandinavian Airlines
29 Dec - 06 Jan Scandinavian Airlines
29 Dec - 31 Dec Finnair direct
29 Dec - 30 Dec Norwegian Air Sweden AOC
29 Dec - 29 Dec Norwegian Air Sweden AOC

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

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