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

Return flights

08 Dec - 12 Dec	Air Serbia
26 Dec - 02 Jan	Air Serbia
29 Dec - 02 Jan	Air Serbia
01 Dec - 05 Dec	Ryanair
29 Dec - 05 Jan	Air Serbia
29 Dec - 04 Jan	Air Serbia
05 Dec - 10 Dec	Air Serbia
13 Dec - 18 Dec	Ryanair
06 Dec - 10 Dec	Ryanair
08 Dec - 15 Dec	Air Serbia
19 Dec - 29 Dec	Air Serbia
12 Dec - 15 Dec	Air Serbia
06 Dec - 12 Dec	Ryanair
08 Dec - 14 Dec	Air Serbia
31 Dec - 05 Jan	Air Serbia
30 Dec - 05 Jan	Ryanair
30 Dec - 04 Jan	Ryanair
27 Dec - 01 Jan	Ryanair
24 Dec - 03 Jan	LOT
29 Dec - 03 Jan	Air Serbia

Also check the deals for one-way flights from Thessaloniki 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 Thessaloniki to Oslo in December from $158

Return flights