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

Return flights

30 Sep - 07 Oct	Tunisair
29 Sep - 05 Oct	Nouvelair
22 Sep - 28 Sep	Nouvelair
11 Sep - 18 Sep	Tunisair
08 Sep - 18 Sep	Nouvelair
15 Sep - 25 Sep	Nouvelair
30 Sep - 08 Oct	Tunisair
15 Sep - 21 Sep	Nouvelair
23 Sep - 28 Sep	Tunisair
14 Sep - 18 Sep	Tunisair
25 Sep - 04 Oct	Tunisair
25 Sep - 02 Oct	Eurowings
25 Sep - 29 Sep	Tunisair
08 Sep - 15 Sep	Nouvelair
23 Sep - 30 Sep	Tunisair
30 Sep - 12 Oct	Tunisair
23 Sep - 02 Oct	Nouvelair
18 Sep - 05 Oct	Tunisair
27 Sep - 01 Oct	Eurowings
25 Sep - 07 Oct	Eurowings

Also check the deals for one-way flights from Tunis to Istanbul 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 Istanbul in September from $243

Return flights