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

Return flights

16 Dec - 23 Dec	easyJet
04 Dec - 07 Dec	Ryanair
03 Dec - 07 Dec	easyJet
16 Dec - 19 Dec	Luxair	direct
16 Dec - 23 Dec	Luxair	direct
03 Dec - 08 Dec	Luxair	direct
02 Dec - 06 Dec	Ryanair
12 Dec - 14 Dec	easyJet
05 Dec - 08 Dec	Ryanair
11 Dec - 14 Dec	SWISS
31 Dec - 04 Jan	SWISS
25 Dec - 02 Jan	Luxair	direct
30 Dec - 03 Jan	Lufthansa
31 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 143€

Return flights