AirHint found the following cheapest return flights from Islamabad (ISB) to Istanbul (IST) in May 2026 (see full year).

Return flights

04 May - 11 May	PIA
03 May - 10 May	Fly Jinnah
28 May - 31 May	PIA
20 May - 27 May	PIA
18 May - 04 Jun	Kuwait Airways
31 May - 07 Jun	Flynas
14 May - 21 May	Flynas
30 May - 03 Jun	Flynas
28 May - 02 Jun	PIA
14 May - 19 May	Flynas
03 May - 11 May	Fly Jinnah
28 May - 01 Jun	PIA
15 May - 22 May	PIA
29 May - 01 Jun	PIA
18 May - 25 May	Fly Jinnah
02 May - 08 May	Fly Jinnah
29 May - 02 Jun	Fly Jinnah
29 May - 01 Jun	Turkish Airlines	direct
28 May - 02 Jun	Turkish Airlines	direct
28 May - 01 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Islamabad to Istanbul in May.

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 May from 384€

Return flights