Cheapest return flights from Oslo to Helsinki in December from 99€

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

Return flights

04 Dec - 08 Dec Norwegian direct
01 Dec - 08 Dec Norwegian direct
11 Dec - 12 Dec Norwegian direct
04 Dec - 05 Dec Norwegian direct
04 Dec - 12 Dec Norwegian direct
26 Dec - 15 Jan Norwegian direct
01 Dec - 05 Dec Norwegian direct
01 Dec - 12 Dec Norwegian direct
01 Dec - 04 Dec Norwegian direct
11 Dec - 21 Dec Norwegian direct
04 Dec - 21 Dec Norwegian direct
29 Dec - 15 Jan Norwegian direct
28 Dec - 15 Jan Norwegian direct
26 Dec - 11 Jan Norwegian direct
12 Dec - 01 Jan Norwegian direct
29 Dec - 18 Jan Norwegian direct
29 Dec - 11 Jan Norwegian direct
28 Dec - 11 Jan Norwegian direct
28 Dec - 01 Jan airBaltic
15 Dec - 01 Jan Norwegian direct

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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