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

Return flights

09 Sep - 23 Sep	AJet
10 Sep - 08 Oct	AJet
17 Sep - 30 Sep	AJet
08 Sep - 22 Sep	AJet
16 Sep - 02 Oct	AJet
10 Sep - 16 Oct	AJet
19 Sep - 25 Sep	AJet
09 Sep - 18 Sep	AJet
12 Sep - 12 Oct	AJet
09 Sep - 30 Sep	AJet
12 Sep - 27 Sep	AJet
12 Sep - 20 Sep	AJet
19 Sep - 03 Oct	Ryanair
08 Sep - 15 Sep	AJet
15 Sep - 22 Sep	Pegasus Airlines
12 Sep - 07 Oct	Ryanair
21 Sep - 06 Oct	Pegasus Airlines
23 Sep - 07 Oct	Pegasus Airlines
22 Sep - 07 Oct	Pegasus Airlines
17 Sep - 17 Oct	AJet

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Tehran in September from $331

Return flights