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

Return flights

11 Dec - 15 Dec	easyJet
19 Dec - 04 Jan	Ryanair
10 Dec - 13 Dec	Ryanair
21 Dec - 01 Jan	easyJet
01 Dec - 03 Dec	Ryanair
01 Dec - 04 Dec	Ryanair
05 Dec - 07 Dec	Ryanair
01 Dec - 05 Dec	Ryanair
07 Dec - 12 Dec	Aegean Airlines
08 Dec - 11 Dec	Ryanair
26 Dec - 31 Dec	Ryanair
02 Dec - 09 Dec	KLM
19 Dec - 06 Jan	Ryanair
28 Dec - 02 Jan	easyJet
23 Dec - 02 Jan	Ryanair
21 Dec - 06 Jan	Ryanair
29 Dec - 03 Jan	Ryanair
30 Dec - 05 Jan	Ryanair
30 Dec - 04 Jan	Ryanair
16 Dec - 04 Jan	Volotea	direct

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 $129

Return flights