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

Return flights

31 Aug - 20 Sep	Etihad Airways
25 Aug - 28 Sep	Etihad Airways
19 Aug - 19 Sep	Etihad Airways
20 Aug - 20 Sep	Etihad Airways
29 Aug - 20 Sep	Etihad Airways
25 Aug - 25 Sep	Etihad Airways
31 Aug - 17 Sep	Gulf Air
10 Aug - 29 Sep	Etihad Airways
11 Aug - 26 Sep	Etihad Airways
12 Aug - 15 Sep	Etihad Airways
13 Aug - 19 Aug	Saudia
11 Aug - 18 Aug	Saudia
08 Aug - 28 Aug	Etihad Airways
02 Aug - 13 Aug	Air Serbia
02 Aug - 16 Aug	Air Serbia
01 Aug - 08 Aug	KLM
01 Aug - 13 Aug	KLM
02 Aug - 15 Aug	Air Serbia
01 Aug - 14 Aug	KLM
07 Aug - 18 Aug	Turkish Airlines

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 587€

Return flights