AirHint found the following cheapest return flights from London (LCY) to Islamabad (ISB) in August 2026 (see full year).

Return flights

19 Aug - 01 Sep	SWISS
14 Aug - 10 Sep	SWISS
21 Aug - 03 Sep	Air Dolomiti
28 Aug - 16 Sep	SWISS
07 Aug - 01 Sep	KLM
02 Aug - 20 Aug	SWISS
09 Aug - 20 Aug	SWISS
15 Aug - 28 Aug	Luxair
08 Aug - 28 Aug	SWISS
10 Aug - 31 Aug	KLM
17 Aug - 19 Aug	SWISS
25 Aug - 08 Sep	SWISS
27 Aug - 15 Sep	SWISS
10 Aug - 21 Aug	SWISS
28 Aug - 02 Sep	SWISS
28 Aug - 11 Sep	SWISS
28 Aug - 25 Sep	SWISS
05 Aug - 19 Aug	SWISS
12 Aug - 26 Aug	SWISS
12 Aug - 31 Aug	SWISS

Also check the deals for one-way flights from London to Islamabad 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 Islamabad in August from $1505

Return flights