AirHint found the following cheapest return flights from Perth (PER) to Karachi (KHI) in September 2025 (see full year).

Return flights

11 Sep - 18 Sep	Batik Air Malaysia
08 Sep - 20 Oct	AirAsia
15 Sep - 17 Sep	AirAsia
15 Sep - 19 Sep	AirAsia
15 Sep - 21 Sep	AirAsia
23 Sep - 13 Oct	AirAsia
23 Sep - 03 Oct	AirAsia
17 Sep - 19 Sep	AirAsia
15 Sep - 03 Oct	AirAsia
17 Sep - 21 Sep	AirAsia
17 Sep - 03 Oct	AirAsia
22 Sep - 03 Oct	AirAsia
23 Sep - 10 Oct	AirAsia
18 Sep - 18 Oct	Batik Air Malaysia
30 Sep - 13 Oct	AirAsia
22 Sep - 10 Oct	AirAsia
18 Sep - 21 Sep	AirAsia
09 Sep - 19 Sep	AirAsia
14 Sep - 19 Sep	AirAsia
09 Sep - 17 Sep	AirAsia

Also check the deals for one-way flights from Perth to Karachi 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 Perth to Karachi in September from $648

Return flights