AirHint found the following cheapest return flights from London (LGW) to Islamabad (ISB) in August 2025 (see full year).

Return flights

31 Aug - 28 Sep	Wizz Air UK
29 Aug - 28 Sep	Wizz Air UK
28 Aug - 28 Sep	Wizz Air UK
31 Aug - 23 Sep	Wizz Air UK
28 Aug - 27 Sep	Wizz Air UK
28 Aug - 24 Sep	Wizz Air UK
30 Aug - 23 Sep	Wizz Air UK
26 Aug - 28 Sep	Wizz Air UK
31 Aug - 25 Sep	Wizz Air UK
25 Aug - 28 Sep	Wizz Air UK
28 Aug - 31 Aug	Wizz Air UK
17 Aug - 31 Aug	Wizz Air UK
22 Aug - 25 Aug	Wizz Air UK
02 Aug - 06 Aug	Wizz Air
20 Aug - 23 Aug	Wizz Air Malta
17 Aug - 25 Aug	Wizz Air UK
19 Aug - 23 Aug	Wizz Air UK
04 Aug - 12 Aug	Wizz Air UK
19 Aug - 31 Aug	Wizz Air UK
15 Aug - 19 Aug	Gulf Air

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 446€

Return flights