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

Return flights

11 Dec - 08 Jan	Ryanair
24 Dec - 28 Dec	SWISS
25 Dec - 31 Dec	Lufthansa
25 Dec - 01 Jan	SWISS
10 Dec - 15 Dec	Ryanair
24 Dec - 04 Jan	SWISS
25 Dec - 01 Jan	Luxair	direct
19 Dec - 05 Jan	Ryanair
10 Dec - 17 Dec	Ryanair
22 Dec - 02 Jan	KLM
27 Dec - 05 Jan	Ryanair
09 Dec - 17 Dec	Wizz Air
12 Dec - 16 Dec	KLM
25 Dec - 31 Dec	Luxair	direct
12 Dec - 14 Dec	KLM
21 Dec - 25 Dec	KLM
12 Dec - 16 Dec	Luxair	direct
27 Dec - 03 Jan	Ryanair
28 Dec - 04 Jan	Ryanair
19 Dec - 05 Jan	Luxair	direct

Also check the deals for one-way flights from Copenhagen to Luxemburg 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 Copenhagen to Luxemburg in December from 157€

Return flights