Cheapest return flights from Oslo to Helsinki in December from 104€

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

Return flights

08 Dec - 12 Dec airBaltic
02 Dec - 08 Dec airBaltic
04 Dec - 05 Dec airBaltic
02 Dec - 05 Dec airBaltic
08 Dec - 10 Dec airBaltic
03 Dec - 28 Jan airBaltic
10 Dec - 15 Dec airBaltic
05 Dec - 07 Dec airBaltic
12 Dec - 15 Dec Finnair
08 Dec - 18 Dec Norwegian direct
08 Dec - 12 Dec Norwegian direct
28 Dec - 15 Jan Norwegian Air Sweden AOC
28 Dec - 08 Jan Norwegian Air Sweden AOC
29 Dec - 15 Jan Norwegian direct
28 Dec - 11 Jan Norwegian Air Sweden AOC
28 Dec - 15 Jan Norwegian direct
26 Dec - 15 Jan Norwegian direct
29 Dec - 08 Jan Norwegian direct
29 Dec - 11 Jan Norwegian direct
31 Dec - 04 Jan airBaltic

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

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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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