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

Return flights

18 Sep - 21 Sep	Air Europa
18 Sep - 22 Sep	Air Europa
11 Sep - 18 Sep	Vueling Airlines
06 Sep - 14 Sep	Air Europa
15 Sep - 30 Sep	Volotea
11 Sep - 05 Oct	Transavia France
11 Sep - 16 Sep	Ryanair
11 Sep - 17 Sep	Ryanair
18 Sep - 30 Sep	Air Europa
11 Sep - 20 Sep	Transavia France
20 Sep - 29 Sep	Air Europa
25 Sep - 02 Oct	Transavia France
25 Sep - 09 Oct	Transavia France
27 Sep - 05 Oct	Vueling Airlines
22 Sep - 06 Oct	Volotea
29 Sep - 06 Oct	Vueling Airlines
29 Sep - 20 Oct	easyJet
28 Sep - 19 Oct	easyJet
27 Sep - 27 Oct	easyJet
06 Sep - 31 Oct	Air Europa

Also check the deals for one-way flights from Lisbon to Tunis 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 Lisbon to Tunis in September from 173€

Return flights