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

Return flights

29 Sep - 08 Oct	Nouvelair
29 Sep - 11 Oct	Nouvelair
23 Sep - 30 Sep	Nouvelair
29 Sep - 04 Oct	Nouvelair
25 Sep - 30 Sep	Nouvelair
26 Sep - 28 Sep	Nouvelair
19 Sep - 30 Sep	Air France
22 Sep - 29 Sep	Nouvelair

Also check the deals for one-way flights from Tunis to Porto 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 Tunis to Porto in September from 221€

Return flights