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

Return flights

31 Dec - 09 Jan	Ryanair
31 Dec - 07 Jan	Ryanair
28 Dec - 11 Jan	Wizz Air
31 Dec - 08 Jan	Ryanair
31 Dec - 06 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
30 Dec - 09 Jan	Ryanair
31 Dec - 04 Jan	Ryanair
24 Dec - 04 Jan	Aegean Airlines
28 Dec - 01 Jan	Wizz Air
26 Dec - 31 Dec	Wizz Air
28 Dec - 31 Dec	Wizz Air
25 Dec - 31 Dec	KLM
25 Dec - 30 Dec	KLM
24 Dec - 30 Dec	KLM
24 Dec - 29 Dec	Aegean Airlines
28 Dec - 30 Dec	Wizz Air
25 Dec - 26 Dec	SKY express
27 Dec - 31 Dec	Scandinavian Airlines
27 Dec - 30 Dec	KLM

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 116€

Return flights