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

Return flights

13 Aug - 28 Aug	Fly Jinnah
12 Aug - 24 Aug	Serene Air
13 Aug - 17 Aug	Serene Air
17 Aug - 24 Aug	Serene Air
19 Aug - 31 Aug	Fly Jinnah
20 Aug - 25 Aug	Fly Jinnah
14 Aug - 24 Aug	Fly Jinnah
21 Aug - 16 Sep	Fly Jinnah
15 Aug - 19 Aug	Serene Air
08 Aug - 27 Aug	Fly Jinnah
11 Aug - 17 Aug	Fly Jinnah
22 Aug - 03 Sep	Serene Air
20 Aug - 03 Sep	Serene Air
25 Aug - 15 Sep	PIA
25 Aug - 14 Sep	PIA
26 Aug - 09 Sep	Serene Air
28 Aug - 06 Sep	Fly Jinnah
28 Aug - 28 Sep	Fly Jinnah
27 Aug - 03 Sep	PIA
20 Aug - 01 Sep	Serene Air

Also check the deals for one-way flights from Islamabad to Istanbul 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 Islamabad to Istanbul in August from 310€

Return flights