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

Return flights

17 Dec - 18 Dec	Volotea	direct
17 Dec - 24 Dec	easyJet
17 Dec - 19 Dec	Volotea	direct
18 Dec - 19 Dec	Volotea	direct
17 Dec - 24 Dec	Volotea	direct
17 Dec - 26 Dec	Volotea	direct
17 Dec - 20 Dec	Volotea	direct
18 Dec - 24 Dec	Volotea	direct
18 Dec - 26 Dec	Volotea	direct
18 Dec - 20 Dec	Volotea	direct

Also check the deals for one-way flights from Toulouse to Lille 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 Toulouse to Lille in December from $217

Return flights