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

Return flights

15 Sep - 22 Sep	AirAsia
10 Sep - 22 Sep	AirAsia
17 Sep - 22 Sep	AirAsia
08 Sep - 22 Sep	AirAsia
16 Sep - 22 Sep	AirAsia
15 Sep - 17 Sep	AirAsia
10 Sep - 17 Sep	AirAsia
10 Sep - 26 Sep	AirAsia
15 Sep - 26 Sep	AirAsia
10 Sep - 29 Sep	AirAsia
30 Sep - 20 Oct	AirAsia
12 Sep - 22 Oct	AirAsia
19 Sep - 04 Oct	Thai Airways
26 Sep - 04 Oct	Thai Airways

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 565€

Return flights