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

Return flights

05 Aug - 20 Aug	Kuwait Airways
05 Aug - 02 Sep	Kuwait Airways
02 Aug - 27 Aug	Kuwait Airways
07 Aug - 13 Aug	Kuwait Airways
09 Aug - 15 Aug	Kuwait Airways
12 Aug - 15 Aug	Kuwait Airways
13 Aug - 02 Sep	Wizz Air UK
07 Aug - 27 Aug	Kuwait Airways
13 Aug - 01 Sep	Wizz Air UK
07 Aug - 09 Sep	Kuwait Airways
13 Aug - 03 Sep	Wizz Air UK
13 Aug - 27 Aug	Wizz Air UK
11 Aug - 25 Aug	Saudia
20 Aug - 27 Aug	Saudia
06 Aug - 26 Aug	Saudia
22 Aug - 06 Sep	Saudia
15 Aug - 06 Sep	Saudia
15 Aug - 13 Sep	Saudia
22 Aug - 13 Sep	Saudia
26 Aug - 13 Sep	Saudia

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 $703

Return flights