AirHint found the following cheapest return flights from Lille (LIL) to Alicante (ALC) in September 2025 (see full year).

Return flights

30 Sep - 02 Oct	easyJet
29 Sep - 17 Oct	Volotea
30 Sep - 04 Oct	easyJet	direct
30 Sep - 01 Oct	easyJet
23 Sep - 04 Oct	Ryanair
30 Sep - 07 Oct	easyJet	direct
23 Sep - 04 Oct	easyJet	direct
30 Sep - 03 Oct	easyJet
30 Sep - 06 Oct	easyJet
23 Sep - 07 Oct	easyJet	direct
23 Sep - 30 Sep	easyJet	direct
23 Sep - 27 Sep	Ryanair
23 Sep - 27 Sep	easyJet	direct
27 Sep - 30 Sep	easyJet	direct
26 Sep - 29 Sep	Ryanair
23 Sep - 28 Sep	easyJet
25 Sep - 29 Sep	Ryanair
22 Sep - 29 Sep	Ryanair
24 Sep - 30 Sep	easyJet
18 Sep - 25 Sep	Volotea

Also check the deals for one-way flights from Lille to Alicante 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 Alicante in September from $167

Return flights