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

Return flights

12 Dec - 14 Dec	Ryanair
03 Dec - 18 Jan	Ryanair
15 Dec - 21 Dec	Ryanair
03 Dec - 07 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
10 Dec - 15 Dec	Ryanair
18 Dec - 23 Dec	Ryanair
06 Dec - 11 Dec	Ryanair
07 Dec - 12 Dec	KLM
01 Dec - 07 Dec	Ryanair
02 Dec - 06 Dec	KLM
16 Dec - 09 Jan	Lufthansa
23 Dec - 21 Jan	Ryanair
23 Dec - 11 Jan	Ryanair
22 Dec - 21 Jan	Ryanair
22 Dec - 11 Jan	Ryanair
25 Dec - 16 Jan	Lufthansa
18 Dec - 07 Jan	Ryanair
20 Dec - 11 Jan	Ryanair
23 Dec - 09 Jan	Ryanair

Also check the deals for one-way flights from Luxemburg to Athens 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 Athens in December from $145

Return flights