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

Return flights

06 Oct - 10 Oct	Flynas
09 Oct - 16 Oct	Flynas
06 Oct - 13 Oct	Flynas
05 Oct - 12 Oct	Fly Jinnah
18 Oct - 31 Oct	Flynas
11 Oct - 18 Oct	Flynas
04 Oct - 10 Oct	Flynas
01 Oct - 07 Oct	Flynas
01 Oct - 10 Oct	Flynas
01 Oct - 12 Oct	Flynas
25 Oct - 02 Nov	Flynas
25 Oct - 04 Nov	Flynas
31 Oct - 11 Nov	Flynas
30 Oct - 11 Nov	Flynas
27 Oct - 09 Nov	Kuwait Airways
28 Oct - 03 Nov	Flynas
27 Oct - 03 Nov	Flynas
27 Oct - 08 Nov	PIA
31 Oct - 11 Nov	Turkish Airlines	direct
27 Oct - 08 Nov	Turkish Airlines	direct

Also check the deals for one-way flights from Islamabad to Istanbul 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 Islamabad to Istanbul in October from 349€

Return flights