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

Return flights

13 Oct - 22 Oct	Volotea	direct
15 Oct - 22 Oct	Volotea	direct
03 Oct - 22 Oct	Volotea	direct
03 Oct - 13 Oct	Volotea	direct
10 Oct - 22 Oct	Volotea	direct
10 Oct - 13 Oct	Volotea	direct
13 Oct - 27 Oct	Volotea	direct
13 Oct - 29 Oct	Volotea	direct
13 Oct - 24 Oct	Volotea	direct
15 Oct - 27 Oct	Volotea	direct
30 Oct - 02 Nov	easyJet

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

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 October from 86€

Return flights