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

Return flights

02 Dec - 23 Dec	Virgin Australia
02 Dec - 31 Dec	Virgin Australia
01 Dec - 31 Dec	Virgin Australia
02 Dec - 30 Dec	Virgin Australia
08 Dec - 19 Jan	Qatar Airways
07 Dec - 27 Jan	Qatar Airways
08 Dec - 21 Jan	Qatar Airways
04 Dec - 27 Jan	Qatar Airways
08 Dec - 20 Jan	Qatar Airways
08 Dec - 25 Jan	Qatar Airways
05 Dec - 25 Jan	Virgin Australia
07 Dec - 21 Jan	Qatar Airways
07 Dec - 20 Jan	Qatar Airways
07 Dec - 25 Jan	Qatar Airways

Also check the deals for one-way flights from Sydney to Islamabad 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 Islamabad in December from 960€

Return flights