AirHint found the following cheapest return flights from Toulouse (TLS) to Lisbon (LIS) in September 2025 (see full year).

Return flights

24 Sep - 01 Oct	Ryanair	direct
24 Sep - 08 Oct	Ryanair	direct
24 Sep - 03 Oct	Ryanair	direct
17 Sep - 24 Sep	Ryanair	direct
24 Sep - 26 Sep	Ryanair	direct
28 Sep - 01 Oct	Ryanair	direct
28 Sep - 03 Oct	Ryanair	direct
26 Sep - 01 Oct	Ryanair	direct
26 Sep - 03 Oct	Ryanair	direct
29 Sep - 01 Oct	Ryanair
30 Sep - 01 Oct	Ryanair
24 Sep - 30 Sep	Ryanair
27 Sep - 01 Oct	Ryanair
24 Sep - 27 Sep	Ryanair
20 Sep - 24 Sep	Ryanair
20 Sep - 26 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
23 Sep - 24 Sep	Ryanair
18 Sep - 25 Sep	TAP	direct
24 Sep - 24 Sep	Ryanair

Also check the deals for one-way flights from Toulouse to Lisbon in September.

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 Lisbon in September from $43

Return flights