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

Return flights

07 Dec - 11 Dec	Volotea	direct
07 Dec - 24 Dec	Volotea	direct
07 Dec - 19 Dec	Volotea	direct
01 Dec - 09 Dec	Ryanair
14 Dec - 24 Dec	Volotea	direct
14 Dec - 19 Dec	Volotea	direct
07 Dec - 26 Dec	Volotea	direct
14 Dec - 26 Dec	Volotea	direct
19 Dec - 24 Dec	Volotea	direct
22 Dec - 24 Dec	Volotea	direct
22 Dec - 05 Jan	Volotea
29 Dec - 12 Jan	Volotea
19 Dec - 05 Jan	Volotea	direct
22 Dec - 05 Jan	Volotea	direct

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

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 December from 123€

Return flights