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

Return flights

22 Sep - 28 Sep	PIA
22 Sep - 29 Sep	PIA
21 Sep - 29 Sep	PIA
01 Sep - 10 Sep	PIA
05 Sep - 12 Sep	PIA
19 Sep - 26 Sep	PIA
01 Sep - 12 Sep	PIA
21 Sep - 28 Sep	Serene Air
06 Sep - 20 Sep	Thai Airways
22 Sep - 30 Sep	PIA
17 Sep - 05 Oct	Etihad Airways
14 Sep - 02 Oct	PIA
30 Sep - 05 Oct	Etihad Airways
26 Sep - 02 Oct	Etihad Airways
14 Sep - 02 Oct	PIA	direct

Also check the deals for one-way flights from Islamabad to Kuala Lumpur 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 Kuala Lumpur in September from 392€

Return flights