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

Return flights

04 Dec - 07 Dec	Volotea	direct
04 Dec - 24 Dec	Volotea	direct
04 Dec - 19 Dec	Volotea	direct
04 Dec - 14 Dec	Volotea	direct
18 Dec - 24 Dec	easyJet
18 Dec - 26 Dec	easyJet
22 Dec - 24 Dec	Volotea	direct
18 Dec - 24 Dec	Volotea	direct
19 Dec - 24 Dec	Volotea	direct
18 Dec - 19 Dec	Volotea	direct
29 Dec - 02 Jan	easyJet
22 Dec - 02 Jan	Volotea	direct
18 Dec - 02 Jan	Volotea	direct
19 Dec - 02 Jan	Volotea	direct
26 Dec - 02 Jan	Volotea
26 Dec - 02 Jan	Volotea	direct
29 Dec - 02 Jan	Volotea	direct
27 Dec - 03 Jan	easyJet

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 $100

Return flights