AirHint found the following cheapest return flights from Helsinki (HEL) to Oslo (OSL) in January 2026 (see full year).

Return flights

11 Jan - 15 Jan	Norwegian	direct
08 Jan - 15 Jan	Norwegian	direct
08 Jan - 11 Jan	Norwegian	direct
29 Jan - 13 Feb	Norwegian	direct
01 Jan - 08 Jan	Norwegian	direct
01 Jan - 15 Jan	Norwegian	direct
01 Jan - 11 Jan	Norwegian	direct
02 Jan - 08 Jan	Norwegian	direct
02 Jan - 15 Jan	Norwegian	direct
02 Jan - 11 Jan	Norwegian	direct
05 Jan - 08 Jan	Norwegian Air Sweden AOC

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

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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Cheapest return flights from Helsinki to Oslo in January from 98€

Return flights