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

Return flights

25 Sep - 28 Sep	Ryanair
22 Sep - 28 Sep	Ryanair
18 Sep - 25 Sep	Ryanair
25 Sep - 26 Sep	Ryanair
29 Sep - 06 Oct	Ryanair
24 Sep - 28 Sep	Ryanair
25 Sep - 30 Sep	easyJet
23 Sep - 25 Sep	Ryanair
22 Sep - 25 Sep	Ryanair
19 Sep - 23 Sep	Ryanair
16 Sep - 21 Sep	SKY express
30 Sep - 14 Oct	Volotea	direct
30 Sep - 02 Oct	Volotea	direct
25 Sep - 14 Oct	Volotea	direct
30 Sep - 19 Oct	Volotea	direct
30 Sep - 16 Oct	Volotea	direct
23 Sep - 02 Oct	Volotea	direct
23 Sep - 05 Oct	Volotea	direct
25 Sep - 05 Oct	Volotea	direct
21 Sep - 02 Oct	Volotea	direct

Also check the deals for one-way flights from Athens to Luxemburg in September.

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 September from $154

Return flights