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

Return flights

29 Dec - 05 Jan	Ryanair
29 Dec - 31 Dec	Ryanair
27 Dec - 02 Jan	Lufthansa
31 Dec - 07 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
29 Dec - 01 Jan	Ryanair
31 Dec - 01 Jan	Ryanair
26 Dec - 01 Jan	Lufthansa
29 Dec - 02 Jan	Lufthansa
28 Dec - 02 Jan	Lufthansa
29 Dec - 04 Jan	Lufthansa
29 Dec - 30 Dec	Ryanair
23 Dec - 28 Dec	Eurowings
23 Dec - 30 Dec	Lufthansa
25 Dec - 30 Dec	Austrian Airlines
23 Dec - 31 Dec	Eurowings
25 Dec - 28 Dec	Austrian Airlines
25 Dec - 31 Dec	Austrian Airlines
23 Dec - 26 Dec	Eurowings
22 Dec - 31 Dec	Eurowings

Also check the deals for one-way flights from Cologne 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 Cologne to Copenhagen in December from 222€

Return flights