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

Return flights

10 Dec - 14 Dec	Ryanair
08 Dec - 12 Dec	Ryanair
04 Dec - 06 Dec	Ryanair
21 Dec - 05 Jan	easyJet
07 Dec - 09 Dec	easyJet
29 Dec - 04 Jan	KLM
05 Dec - 08 Dec	SWISS
19 Dec - 22 Dec	SWISS
06 Dec - 08 Dec	SWISS
24 Dec - 28 Dec	Lufthansa
23 Dec - 28 Dec	Lufthansa
26 Dec - 28 Dec	SWISS
21 Dec - 04 Jan	easyJet
30 Dec - 04 Jan	Lufthansa
18 Dec - 02 Jan	Ryanair
29 Dec - 03 Jan	Lufthansa
29 Dec - 02 Jan	Lufthansa
28 Dec - 03 Jan	Lufthansa
18 Dec - 02 Jan	Luxair	direct
30 Dec - 04 Jan	Luxair	direct

Also check the deals for one-way flights from Luxemburg 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 Luxemburg to Copenhagen in December from 122€

Return flights