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

Return flights

01 Aug - 30 Sep	PIA
01 Aug - 22 Aug	PIA
03 Aug - 07 Sep	PIA
01 Aug - 10 Aug	PIA
04 Aug - 04 Sep	PIA
03 Aug - 08 Sep	PIA
03 Aug - 22 Aug	PIA
03 Aug - 29 Aug	Fly Jinnah
04 Aug - 08 Sep	PIA
01 Aug - 30 Aug	PIA
03 Aug - 09 Sep	PIA
01 Aug - 25 Aug	PIA
01 Aug - 28 Aug	Fly Jinnah
01 Aug - 12 Sep	PIA
11 Aug - 25 Aug	Flynas
03 Aug - 06 Sep	PIA
10 Aug - 10 Sep	PIA
04 Aug - 25 Sep	PIA
12 Aug - 22 Aug	PIA
02 Aug - 22 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 475€

Return flights