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

Return flights

28 Aug - 12 Sep	AirAsia X
26 Aug - 17 Sep	AirAsia X
21 Aug - 31 Aug	Scoot Tigerair
31 Aug - 14 Sep	Jetstar
12 Aug - 22 Sep	Scoot Tigerair
17 Aug - 07 Sep	Jetstar
17 Aug - 01 Sep	AirAsia X
21 Aug - 30 Aug	Scoot Tigerair
19 Aug - 12 Sep	Scoot Tigerair
26 Aug - 18 Sep	Scoot Tigerair
21 Aug - 04 Sep	Scoot Tigerair
17 Aug - 24 Aug	Jetstar
10 Aug - 31 Aug	Scoot Tigerair
21 Aug - 28 Sep	Scoot Tigerair
19 Aug - 30 Aug	AirAsia X
13 Aug - 20 Aug	Scoot Tigerair
22 Aug - 31 Aug	AirAsia X
14 Aug - 31 Aug	Scoot Tigerair
10 Aug - 30 Aug	Scoot Tigerair
22 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 $761

Return flights