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

Return flights

14 Dec - 11 Jan	Scandinavian Airlines
06 Dec - 10 Dec	Ryanair
07 Dec - 11 Dec	Scandinavian Airlines
18 Dec - 23 Dec	Air Serbia
12 Dec - 15 Dec	Air Serbia
31 Dec - 06 Jan	Scandinavian Airlines
11 Dec - 14 Dec	Air Serbia
18 Dec - 21 Dec	Air Serbia
14 Dec - 18 Dec	Air Serbia
11 Dec - 18 Dec	Air Serbia
16 Dec - 06 Jan	Ryanair
13 Dec - 18 Dec	Ryanair
18 Dec - 25 Dec	Air Serbia
18 Dec - 06 Jan	Air Serbia
31 Dec - 06 Jan	Aegean Airlines	direct
28 Dec - 11 Jan	Air Serbia
25 Dec - 01 Jan	Air Serbia
20 Dec - 06 Jan	Ryanair
14 Dec - 04 Jan	Air Serbia
18 Dec - 04 Jan	Air Serbia

Also check the deals for one-way flights from Oslo to Athens 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 Oslo to Athens in December from 118€

Return flights