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

Return flights

06 Dec - 13 Dec	Ryanair
06 Dec - 13 Dec	Eurowings	direct
13 Dec - 20 Dec	Ryanair
12 Dec - 15 Dec	Austrian Airlines
03 Dec - 07 Dec	Austrian Airlines
02 Dec - 06 Dec	Ryanair
10 Dec - 17 Dec	Austrian Airlines
29 Dec - 10 Jan	Eurowings
03 Dec - 06 Dec	Eurowings
15 Dec - 18 Dec	Ryanair
04 Dec - 07 Dec	Austrian Airlines
18 Dec - 10 Jan	Ryanair
29 Dec - 06 Jan	Eurowings
27 Dec - 10 Jan	Eurowings
23 Dec - 10 Jan	Ryanair
19 Dec - 11 Jan	Ryanair
18 Dec - 06 Jan	Eurowings
29 Dec - 01 Jan	Eurowings
29 Dec - 10 Jan	Eurowings	direct
27 Dec - 01 Jan	Eurowings

Also check the deals for one-way flights from Cologne to Thessaloniki 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 Cologne to Thessaloniki in December from $160

Return flights