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

Return flights

27 Aug - 11 Sep	ITA Airways
03 Aug - 08 Aug	ITA Airways
10 Aug - 20 Aug	Lufthansa
07 Aug - 09 Sep	SWISS
06 Aug - 09 Sep	SWISS
06 Aug - 11 Sep	SWISS
07 Aug - 20 Aug	SWISS
06 Aug - 20 Aug	SWISS
06 Aug - 13 Aug	SWISS
07 Aug - 11 Aug	SWISS
06 Aug - 15 Sep	SWISS
13 Aug - 25 Aug	SWISS
07 Aug - 08 Sep	SWISS
13 Aug - 01 Sep	SWISS
21 Aug - 18 Sep	SWISS
13 Aug - 22 Aug	SWISS
13 Aug - 31 Aug	SWISS
21 Aug - 31 Aug	SWISS
07 Aug - 07 Sep	SWISS
27 Aug - 14 Sep	SWISS

Also check the deals for one-way flights from London to Karachi in August.

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 August from $926

Return flights