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

Return flights

20 Sep - 22 Sep	Air Europa
20 Sep - 26 Sep	Air Europa
25 Sep - 30 Sep	Transavia France
18 Sep - 30 Sep	Volotea
24 Sep - 30 Sep	Ryanair
18 Sep - 22 Sep	Volotea
23 Sep - 30 Sep	easyJet
18 Sep - 28 Sep	Volotea
25 Sep - 29 Sep	Transavia France
27 Sep - 12 Oct	Ryanair
22 Sep - 30 Sep	Vueling Airlines
26 Sep - 01 Oct	Ryanair
30 Sep - 02 Oct	Ryanair
22 Sep - 06 Oct	Volotea
17 Sep - 07 Oct	Transavia France
22 Sep - 13 Oct	Volotea
29 Sep - 03 Oct	Ryanair
30 Sep - 11 Oct	TAP
22 Sep - 04 Oct	Volotea
28 Sep - 05 Oct	easyJet

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 $219

Return flights