AirHint found the following cheapest return flights from Tunis (TUN) to Istanbul (IST) in September 2026 (see full year).

Return flights

15 Sep - 19 Sep	Air France
01 Sep - 08 Sep	Turkish Airlines	direct
13 Sep - 19 Sep	Turkish Airlines	direct
05 Sep - 13 Sep	Turkish Airlines	direct
25 Sep - 07 Oct	Transavia France
25 Sep - 07 Oct	Turkish Airlines	direct
15 Sep - 19 Sep	Turkish Airlines	direct
01 Sep - 06 Sep	Air France
01 Sep - 23 Sep	Air France
08 Sep - 15 Sep	Air France
01 Sep - 15 Sep	Air France
03 Sep - 12 Sep	Air France

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 256€

Return flights