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

Return flights

14 Jul - 01 Aug	Volotea	direct
11 Jul - 18 Jul	Volotea
14 Jul - 28 Jul	Volotea	direct
14 Jul - 25 Jul	Volotea	direct
28 Jul - 08 Aug	Volotea	direct
28 Jul - 04 Aug	Volotea	direct
28 Jul - 15 Aug	Volotea	direct
24 Jul - 08 Aug	Volotea
15 Jul - 01 Aug	Volotea
13 Jul - 18 Jul	Volotea
26 Jul - 27 Jul	Volotea
14 Jul - 18 Jul	Volotea
11 Jul - 14 Jul	Volotea
14 Jul - 22 Jul	Volotea
14 Jul - 18 Jul	Volotea	direct
28 Jul - 01 Aug	Volotea	direct
17 Jul - 20 Jul	Volotea
11 Jul - 01 Aug	Volotea	direct
28 Jul - 11 Aug	Volotea	direct
25 Jul - 08 Aug	Volotea	direct

Also check the deals for one-way flights from Toulouse to Lille in July.

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 July from $284

Return flights