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

Return flights

11 Dec - 15 Dec	easyJet
12 Dec - 15 Dec	easyJet
12 Dec - 14 Dec	easyJet
11 Dec - 14 Dec	easyJet
15 Dec - 17 Dec	easyJet
10 Dec - 14 Dec	easyJet
14 Dec - 19 Dec	easyJet
04 Dec - 07 Dec	easyJet
04 Dec - 08 Dec	easyJet
06 Dec - 09 Dec	easyJet
18 Dec - 05 Jan	easyJet
29 Dec - 05 Jan	easyJet
26 Dec - 01 Jan	easyJet
25 Dec - 01 Jan	easyJet
19 Dec - 05 Jan	easyJet
25 Dec - 06 Jan	SWISS
26 Dec - 02 Jan	easyJet
02 Dec - 02 Jan	easyJet
20 Dec - 04 Jan	easyJet
27 Dec - 02 Jan	easyJet

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 $120

Return flights