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

Return flights

07 Dec - 10 Jan	Thai Airways
20 Dec - 04 Jan	Thai Airways
06 Dec - 01 Jan	Thai Airways
12 Dec - 19 Dec	Thai Airways
07 Dec - 10 Dec	AirAsia
06 Dec - 10 Dec	AirAsia
22 Dec - 08 Jan	Thai Airways
07 Dec - 14 Dec	AirAsia
06 Dec - 14 Dec	AirAsia
07 Dec - 19 Dec	AirAsia
06 Dec - 19 Dec	AirAsia
20 Dec - 07 Jan	AirAsia
20 Dec - 05 Jan	AirAsia
22 Dec - 07 Jan	AirAsia
22 Dec - 05 Jan	AirAsia
14 Dec - 04 Jan	AirAsia
12 Dec - 14 Dec	AirAsia
22 Dec - 04 Jan	AirAsia
14 Dec - 19 Dec	AirAsia

Also check the deals for one-way flights from Singapore 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 Singapore to Karachi in December from $701

Return flights