AirHint found the following cheapest return flights from Stuttgart (STR) to Tehran (IKA) in September 2025 (see full year).

Return flights

08 Sep - 25 Sep	Pegasus Airlines
08 Sep - 29 Sep	Pegasus Airlines
10 Sep - 17 Sep	Pegasus Airlines
24 Sep - 06 Oct	Pegasus Airlines
25 Sep - 06 Oct	Pegasus Airlines
18 Sep - 16 Oct	Pegasus Airlines
17 Sep - 16 Oct	Pegasus Airlines
22 Sep - 08 Oct	Pegasus Airlines
10 Sep - 07 Oct	Pegasus Airlines
19 Sep - 01 Oct	Pegasus Airlines
06 Sep - 30 Sep	AJet
25 Sep - 03 Oct	Pegasus Airlines
18 Sep - 03 Oct	Pegasus Airlines
20 Sep - 09 Oct	Pegasus Airlines
29 Sep - 29 Sep	Eurowings

Also check the deals for one-way flights from Stuttgart to Tehran 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 Stuttgart to Tehran in September from $370

Return flights