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

Return flights

14 Dec - 16 Dec	easyJet
10 Dec - 16 Dec	easyJet
01 Dec - 03 Dec	easyJet
11 Dec - 15 Dec	easyJet
09 Dec - 16 Dec	easyJet
11 Dec - 16 Dec	easyJet
02 Dec - 06 Dec	easyJet
15 Dec - 18 Dec	easyJet
14 Dec - 18 Dec	easyJet
08 Dec - 11 Dec	KLM
31 Dec - 05 Jan	Ryanair
18 Dec - 04 Jan	easyJet
31 Dec - 02 Jan	KLM
31 Dec - 01 Jan	Ryanair
26 Dec - 01 Jan	SWISS
19 Dec - 05 Jan	easyJet
28 Dec - 01 Jan	SWISS
19 Dec - 04 Jan	SWISS
30 Dec - 01 Jan	Ryanair
29 Dec - 05 Jan	Ryanair

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 128€

Return flights