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
07 Dec - 11 Dec	easyJet
07 Dec - 14 Dec	easyJet
01 Dec - 03 Dec	Vueling Airlines
12 Dec - 15 Dec	easyJet
14 Dec - 17 Dec	easyJet
11 Dec - 14 Dec	easyJet
01 Dec - 02 Dec	easyJet
12 Dec - 16 Dec	easyJet
12 Dec - 14 Dec	easyJet
28 Dec - 15 Jan	easyJet
17 Dec - 05 Jan	Vueling Airlines
31 Dec - 01 Jan	easyJet
24 Dec - 09 Jan	SWISS
30 Dec - 05 Jan	easyJet
24 Dec - 23 Jan	SWISS
31 Dec - 04 Jan	easyJet
31 Dec - 03 Jan	easyJet
26 Dec - 03 Jan	easyJet
29 Dec - 03 Jan	Ryanair

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 103€

Return flights