AirHint found the following cheapest return flights from Istanbul (IST) to Tehran (IKA) in August 2025 (see full year).

Return flights

02 Aug - 04 Aug	AJet
03 Aug - 10 Aug	AZAL
03 Aug - 09 Aug	AZAL
01 Aug - 03 Aug	AZAL
18 Aug - 25 Aug	AZAL
15 Aug - 29 Aug	AZAL
02 Aug - 09 Aug	AZAL
02 Aug - 03 Aug	AJet	direct
08 Aug - 12 Aug	AJet	direct
01 Aug - 08 Aug	Iran Air Tours	direct
18 Aug - 06 Sep	AJet	direct

Also check the deals for one-way flights from Istanbul to Tehran in August.

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 Istanbul to Tehran in August from $180

Return flights