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

Return flights

14 Sep - 05 Oct	Wizz Air UK
07 Sep - 07 Oct	Wizz Air
25 Sep - 17 Oct	Wizz Air
11 Sep - 23 Oct	Wizz Air UK
12 Sep - 24 Oct	Wizz Air UK
11 Sep - 18 Sep	Wizz Air UK
04 Sep - 11 Sep	Wizz Air UK
03 Sep - 14 Sep	Wizz Air UK
25 Sep - 11 Oct	Wizz Air
21 Sep - 28 Oct	Wizz Air
08 Sep - 25 Sep	Wizz Air UK
11 Sep - 16 Oct	Wizz Air UK
14 Sep - 28 Sep	Air Arabia
01 Sep - 29 Sep	Air Arabia
09 Sep - 23 Sep	Air Arabia
01 Sep - 17 Sep	Air Arabia
01 Sep - 22 Sep	Air Arabia
02 Sep - 23 Sep	Air Arabia
24 Sep - 10 Oct	Air Arabia
15 Sep - 05 Oct	Air Arabia

Also check the deals for one-way flights from London to Islamabad in September.

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 September from 513€

Return flights