AirHint found the following cheapest return flights from Lille (LIL) to Athens (ATH) in September 2026 (see full year).

Return flights

22 Sep - 10 Oct	Volotea	direct
05 Sep - 15 Sep	easyJet
22 Sep - 29 Sep	Volotea	direct
01 Sep - 03 Sep	Volotea
19 Sep - 29 Sep	Volotea	direct
22 Sep - 26 Sep	Volotea	direct
19 Sep - 26 Sep	Volotea	direct
01 Sep - 15 Sep	Volotea	direct
01 Sep - 01 Sep	Volotea
01 Sep - 12 Sep	Volotea
01 Sep - 02 Sep	Volotea

Also check the deals for one-way flights from Lille 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 Lille to Athens in September from $146

Return flights