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

Return flights

01 Sep - 10 Sep	AirAsia
25 Sep - 28 Sep	AirAsia
25 Sep - 15 Oct	AirAsia
25 Sep - 12 Oct	AirAsia
01 Sep - 28 Sep	AirAsia
09 Sep - 28 Sep	AirAsia
19 Sep - 28 Sep	AirAsia
09 Sep - 16 Sep	Thai Airways
19 Sep - 25 Sep	Thai Airways
01 Sep - 23 Sep	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 739€

Return flights