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

Return flights

11 Sep - 30 Sep	China Southern
01 Sep - 08 Sep	Thai Airways
01 Sep - 10 Sep	PIA
06 Sep - 24 Sep	Thai Airways
03 Sep - 22 Sep	Thai Airways
05 Sep - 24 Sep	Thai Airways
07 Sep - 15 Sep	China Southern
05 Sep - 22 Sep	Thai Airways
05 Sep - 19 Sep	Thai Airways
01 Sep - 20 Sep	Thai Airways
17 Sep - 09 Oct	Etihad Airways
28 Sep - 09 Oct	Etihad Airways
28 Sep - 09 Oct	PIA	direct
17 Sep - 09 Oct	PIA	direct
12 Sep - 03 Oct	Emirates

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 $573

Return flights