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

Return flights

30 Sep - 09 Oct	Aegean Airlines
27 Sep - 06 Oct	Ryanair
22 Sep - 16 Oct	Ryanair
30 Sep - 02 Oct	Aegean Airlines
23 Sep - 02 Oct	easyJet
16 Sep - 02 Oct	Ryanair
16 Sep - 24 Sep	Ryanair
28 Sep - 02 Oct	Ryanair
26 Sep - 06 Oct	Ryanair
23 Sep - 24 Sep	easyJet
18 Sep - 23 Sep	Ryanair
16 Sep - 26 Sep	Ryanair
25 Sep - 02 Oct	Ryanair
17 Sep - 23 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
22 Sep - 26 Sep	Ryanair
29 Sep - 08 Oct	easyJet
21 Sep - 24 Sep	easyJet
20 Sep - 24 Sep	Ryanair

Also check the deals for one-way flights from Luxemburg to Athens 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 Luxemburg to Athens in September from 145€

Return flights