AirHint found the following cheapest return flights from Sydney (SYD) to Karachi (KHI) in August 2025 (see full year).

Return flights

26 Aug - 17 Sep	AirAsia X
31 Aug - 14 Sep	AirAsia X
19 Aug - 12 Sep	AirAsia X
12 Aug - 22 Sep	Jetstar
13 Aug - 20 Aug	Scoot Tigerair
19 Aug - 30 Aug	AirAsia X
17 Aug - 24 Aug	AirAsia X
21 Aug - 04 Sep	Scoot Tigerair
15 Aug - 12 Sep	AirAsia X
22 Aug - 13 Sep	AirAsia X
31 Aug - 12 Sep	AirAsia X
23 Aug - 30 Aug	VietJet Air
01 Aug - 17 Aug	AirAsia X
05 Aug - 05 Sep	Sichuan Airlines
31 Aug - 08 Sep	AirAsia X
11 Aug - 29 Aug	Scoot Tigerair
08 Aug - 20 Aug	Scoot Tigerair
13 Aug - 29 Aug	AirAsia X
13 Aug - 27 Aug	AirAsia X
26 Aug - 29 Aug	AirAsia X

Also check the deals for one-way flights from Sydney to Karachi in August.

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 Sydney to Karachi in August from 669€

Return flights