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

Return flights

06 Oct - 20 Oct	Pegasus Airlines
04 Oct - 07 Oct	Pegasus Airlines	direct
13 Oct - 19 Oct	Pegasus Airlines	direct
13 Oct - 21 Oct	Pegasus Airlines	direct
10 Oct - 21 Oct	Pegasus Airlines	direct
06 Oct - 20 Oct	AJet	direct
15 Oct - 30 Oct	AJet	direct
22 Oct - 28 Oct	AJet	direct
01 Oct - 31 Oct	AJet

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

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 October from $151

Return flights