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

Return flights

23 Dec - 29 Dec	Qatar Airways
24 Dec - 29 Dec	Qatar Airways
25 Dec - 08 Jan	Qatar Airways
04 Dec - 07 Dec	Etihad Airways
23 Dec - 28 Dec	Qatar Airways
24 Dec - 28 Dec	Qatar Airways
07 Dec - 12 Dec	Qatar Airways
20 Dec - 30 Dec	Qatar Airways
24 Dec - 14 Jan	AirAsia X
28 Dec - 14 Jan	AirAsia X
24 Dec - 11 Jan	AirAsia X
31 Dec - 14 Jan	AirAsia X
28 Dec - 11 Jan	AirAsia X
24 Dec - 08 Jan	AirAsia X
31 Dec - 11 Jan	AirAsia X
28 Dec - 08 Jan	AirAsia X
31 Dec - 08 Jan	AirAsia X
07 Dec - 19 Dec	AirAsia X
28 Dec - 29 Dec	AirAsia X

Also check the deals for one-way flights from Karachi to Singapore 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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Karachi to Singapore in December from $641

Return flights