AirHint found the following cheapest return flights from Lille (LIL) to Barcelona (BCN) in August 2025 (see full year).

Return flights

30 Aug - 05 Sep	Ryanair
25 Aug - 08 Sep	Volotea	direct
25 Aug - 05 Sep	Volotea	direct
22 Aug - 08 Sep	Volotea	direct
25 Aug - 12 Sep	Volotea	direct
22 Aug - 05 Sep	Volotea	direct
26 Aug - 30 Aug	Ryanair
26 Aug - 27 Aug	Ryanair
30 Aug - 03 Sep	Ryanair
25 Aug - 30 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
25 Aug - 27 Aug	Ryanair
30 Aug - 04 Sep	Ryanair
25 Aug - 31 Aug	Ryanair
18 Aug - 05 Sep	Volotea	direct
20 Aug - 27 Aug	easyJet
22 Aug - 27 Aug	Volotea
24 Aug - 27 Aug	Ryanair
22 Aug - 30 Aug	Volotea
31 Aug - 04 Sep	Ryanair

Also check the deals for one-way flights from Lille to Barcelona in August.

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 Barcelona in August from 122€

Return flights