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

Return flights

12 Dec - 17 Dec	Air Serbia
10 Dec - 15 Dec	Air Serbia
03 Dec - 07 Dec	Air Serbia
07 Dec - 12 Dec	Air Serbia
06 Dec - 10 Dec	Air Serbia
06 Dec - 09 Dec	Air Serbia
24 Dec - 02 Jan	Air Serbia
24 Dec - 28 Dec	Air Serbia
18 Dec - 21 Dec	Ryanair
26 Dec - 04 Jan	Air Serbia
27 Dec - 04 Jan	Air Serbia
26 Dec - 03 Jan	Air Serbia

Also check the deals for one-way flights from Thessaloniki to Copenhagen 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 Copenhagen in December from $167

Return flights