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

Return flights

06 Dec - 12 Dec	Turkish Airlines
14 Dec - 05 Jan	Lufthansa
13 Dec - 05 Jan	Ryanair
20 Dec - 30 Dec	easyJet
20 Dec - 27 Dec	easyJet
20 Dec - 28 Dec	easyJet
14 Dec - 04 Jan	Turkish Airlines
13 Dec - 04 Jan	Turkish Airlines
19 Dec - 27 Dec	Luxair
19 Dec - 28 Dec	Luxair
22 Dec - 02 Jan	SWISS

Also check the deals for one-way flights from Luxemburg to Singapore 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 Singapore in December from 653€

Return flights