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

Return flights

10 Aug - 31 Aug	AZAL
05 Aug - 12 Sep	Gulf Air
07 Aug - 12 Sep	Flynas
07 Aug - 13 Sep	Flynas
07 Aug - 26 Sep	Gulf Air
01 Aug - 07 Sep	Fly Jinnah
02 Aug - 30 Aug	Gulf Air
01 Aug - 02 Sep	Fly Jinnah
02 Aug - 29 Aug	Gulf Air
10 Aug - 07 Sep	AZAL
01 Aug - 28 Aug	Fly Jinnah
06 Aug - 09 Sep	Fly Jinnah
02 Aug - 31 Aug	Fly Jinnah
02 Aug - 01 Sep	Gulf Air
07 Aug - 08 Sep	Emirates
05 Aug - 29 Aug	Gulf Air
07 Aug - 30 Aug	British Airways
08 Aug - 30 Aug	Fly Jinnah
05 Aug - 25 Aug	Gulf Air
15 Aug - 31 Aug	Fly Jinnah

Also check the deals for one-way flights from Islamabad to London 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 Islamabad to London in August from 471€

Return flights