AirHint found the following cheapest return flights from Islamabad (ISB) to Istanbul (SAW) in September 2025 (see full year).

Return flights

22 Sep - 29 Sep	Fly Jinnah
25 Sep - 04 Oct	Fly Jinnah
24 Sep - 01 Oct	Fly Jinnah
21 Sep - 29 Sep	Flynas
28 Sep - 05 Oct	Fly Jinnah
28 Sep - 08 Oct	Flynas
27 Sep - 05 Oct	Flynas
28 Sep - 03 Oct	Flynas
28 Sep - 12 Oct	Fly Jinnah
27 Sep - 30 Sep	Flynas
26 Sep - 03 Oct	Fly Jinnah
27 Sep - 10 Oct	Flynas
27 Sep - 03 Oct	Flynas
20 Sep - 29 Sep	Flynas
23 Sep - 30 Sep	Fly Jinnah
22 Sep - 30 Sep	Fly Jinnah
22 Sep - 25 Sep	Fly Jinnah
20 Sep - 27 Sep	Fly Jinnah
21 Sep - 30 Sep	Flynas
22 Sep - 27 Sep	Fly Jinnah

Also check the deals for one-way flights from Islamabad to Istanbul 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 Islamabad to Istanbul in September from $367

Return flights