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

Return flights

31 Dec - 17 Jan	Ryanair	direct
31 Dec - 19 Jan	Ryanair	direct
31 Dec - 15 Jan	Ryanair	direct
29 Dec - 17 Jan	Ryanair	direct
29 Dec - 19 Jan	Ryanair	direct
29 Dec - 15 Jan	Ryanair	direct
31 Dec - 12 Jan	Ryanair	direct
31 Dec - 06 Jan	Ryanair	direct
29 Dec - 12 Jan	Ryanair	direct
27 Dec - 29 Dec	Luxair
31 Dec - 05 Jan	Ryanair	direct
29 Dec - 31 Dec	Ryanair	direct
27 Dec - 31 Dec	Lufthansa
28 Dec - 31 Dec	Lufthansa
27 Dec - 28 Dec	Luxair
30 Dec - 31 Dec	Lufthansa
28 Dec - 30 Dec	Lufthansa
27 Dec - 30 Dec	Luxair
28 Dec - 28 Dec	Lufthansa
27 Dec - 30 Dec	Ryanair	direct

Also check the deals for one-way flights from Luxemburg to Madrid 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 Madrid in December from 121€

Return flights