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

Return flights

21 Dec - 09 Jan	Ryanair
21 Dec - 01 Jan	Ryanair
19 Dec - 04 Jan	Ryanair
14 Dec - 18 Dec	Ryanair
23 Dec - 04 Jan	Ryanair
14 Dec - 30 Dec	Ryanair
12 Dec - 13 Dec	easyJet
11 Dec - 13 Dec	Ryanair
12 Dec - 14 Dec	LOT
06 Dec - 10 Dec	Turkish Airlines
06 Dec - 08 Dec	Turkish Airlines
14 Dec - 16 Dec	Ryanair
10 Dec - 12 Dec	Ryanair
27 Dec - 31 Dec	KLM
26 Dec - 02 Jan	KLM
21 Dec - 06 Jan	Ryanair
26 Dec - 04 Jan	easyJet
30 Dec - 04 Jan	easyJet
28 Dec - 01 Jan	Ryanair
27 Dec - 03 Jan	KLM

Also check the deals for one-way flights from Athens 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 Athens to Luxemburg in December from $114

Return flights