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

Return flights

04 Dec - 11 Dec	Batik Air Malaysia
01 Dec - 08 Dec	Batik Air Malaysia
02 Dec - 08 Dec	Batik Air Malaysia
05 Dec - 18 Dec	Batik Air Malaysia
05 Dec - 28 Dec	Jetstar
10 Dec - 24 Dec	Jetstar
06 Dec - 26 Dec	Batik Air Malaysia
10 Dec - 28 Jan	Jetstar
01 Dec - 25 Dec	Batik Air Malaysia
10 Dec - 25 Dec	Jetstar
06 Dec - 21 Dec	AirAsia X
01 Dec - 23 Jan	Batik Air Malaysia
05 Dec - 22 Jan	Jetstar
31 Dec - 18 Jan	Sichuan Airlines
10 Dec - 22 Jan	Jetstar
29 Dec - 27 Jan	Air China
04 Dec - 25 Jan	Batik Air Malaysia
04 Dec - 15 Jan	Batik Air Malaysia
02 Dec - 15 Jan	Batik Air Malaysia
31 Dec - 26 Jan	Batik Air Malaysia

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

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 December from 787€

Return flights