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

Return flights

29 Dec - 12 Jan	Ryanair
29 Dec - 04 Jan	Ryanair
15 Dec - 15 Dec	Ryanair
18 Dec - 05 Jan	Ryanair
29 Dec - 05 Jan	Ryanair
08 Dec - 11 Dec	Ryanair
08 Dec - 15 Dec	Ryanair
15 Dec - 22 Dec	Ryanair
10 Dec - 15 Dec	Wizz Air Malta
10 Dec - 14 Dec	Wizz Air Malta
13 Dec - 14 Dec	easyJet
15 Dec - 18 Dec	Ryanair
12 Dec - 14 Dec	Wizz Air Malta
05 Dec - 09 Dec	Wizz Air Malta
19 Dec - 05 Jan	Ryanair
23 Dec - 04 Jan	Wizz Air Malta
19 Dec - 04 Jan	Wizz Air Malta
24 Dec - 05 Jan	Wizz Air Malta
20 Dec - 08 Jan	Wizz Air Malta
29 Dec - 08 Jan	Wizz Air Malta

Also check the deals for one-way flights from London 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 London to Luxemburg in December from $173

Return flights