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	Eurowings	direct
05 Dec - 12 Dec	Wizz Air Malta
13 Dec - 20 Dec	Eurowings	direct
05 Dec - 07 Dec	Wizz Air Malta
21 Dec - 09 Jan	Ryanair
15 Dec - 22 Dec	Ryanair
19 Dec - 27 Dec	Eurowings
22 Dec - 31 Dec	Ryanair
03 Dec - 10 Dec	Lufthansa
16 Dec - 19 Dec	Ryanair
22 Dec - 26 Dec	Ryanair
22 Dec - 03 Jan	Ryanair
20 Dec - 03 Jan	Ryanair
19 Dec - 03 Jan	Eurowings
20 Dec - 06 Jan	Ryanair
21 Dec - 02 Jan	Ryanair
23 Dec - 03 Jan	Ryanair
20 Dec - 05 Jan	Ryanair
22 Dec - 02 Jan	Ryanair
30 Dec - 02 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 $127

Return flights