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

Return flights

11 Dec - 15 Dec	AZAL
05 Dec - 13 Dec	AZAL
10 Dec - 19 Dec	AZAL
10 Dec - 15 Dec	AZAL
08 Dec - 24 Dec	Pegasus Airlines	direct
08 Dec - 11 Dec	AZAL
05 Dec - 12 Dec	AZAL
13 Dec - 19 Dec	AZAL
07 Dec - 13 Dec	AZAL
19 Dec - 22 Dec	AZAL
31 Dec - 14 Jan	Pegasus Airlines	direct
12 Dec - 17 Jan	Pegasus Airlines
12 Dec - 17 Jan	Pegasus Airlines	direct
09 Dec - 11 Jan	Pegasus Airlines	direct
07 Dec - 08 Jan	AJet	direct
10 Dec - 10 Jan	Pegasus Airlines	direct
09 Dec - 08 Jan	Pegasus Airlines	direct
09 Dec - 09 Jan	Pegasus Airlines	direct
10 Dec - 09 Jan	Pegasus Airlines	direct
20 Dec - 08 Jan	AZAL

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

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 December from 120€

Return flights