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

Return flights

06 Dec - 17 Jan	ITA Airways
02 Dec - 25 Jan	ITA Airways
10 Dec - 30 Dec	ITA Airways
12 Dec - 06 Jan	SWISS
17 Dec - 23 Dec	ITA Airways
04 Dec - 11 Jan	ITA Airways
31 Dec - 06 Jan	SWISS
10 Dec - 07 Jan	SWISS
10 Dec - 06 Jan	SWISS
02 Dec - 04 Jan	ITA Airways
10 Dec - 05 Jan	SWISS
24 Dec - 13 Jan	SWISS

Also check the deals for one-way flights from London 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 London to Karachi in December from $1356

Return flights