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

Return flights

29 Dec - 08 Jan	Ryanair
22 Dec - 05 Jan	Ryanair
31 Dec - 15 Jan	Ryanair
22 Dec - 02 Jan	Ryanair
31 Dec - 07 Jan	Ryanair
23 Dec - 07 Jan	Ryanair
21 Dec - 02 Jan	Wizz Air
22 Dec - 04 Jan	Wizz Air
29 Dec - 05 Jan	Ryanair
30 Dec - 08 Jan	Ryanair
17 Dec - 26 Dec	Wizz Air
21 Dec - 31 Dec	Wizz Air
23 Dec - 26 Dec	Ryanair
22 Dec - 31 Dec	Ryanair
18 Dec - 31 Dec	Ryanair
18 Dec - 21 Dec	Air Serbia
23 Dec - 31 Dec	Ryanair
21 Dec - 26 Dec	Air Serbia
26 Dec - 31 Dec	Wizz Air
22 Dec - 30 Dec	Wizz Air

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

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 Athens to Oslo in December from $182

Return flights