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

Return flights

16 Sep - 29 Sep	Wizz Air
04 Sep - 15 Sep	Wizz Air UK
11 Sep - 29 Sep	Wizz Air
24 Sep - 22 Oct	Qatar Airways
02 Sep - 05 Oct	Qatar Airways
30 Sep - 22 Oct	Qatar Airways
04 Sep - 16 Oct	Wizz Air UK
18 Sep - 09 Oct	Wizz Air UK
14 Sep - 28 Sep	Qatar Airways
02 Sep - 08 Oct	Qatar Airways
01 Sep - 15 Oct	Qatar Airways
15 Sep - 15 Oct	Qatar Airways
01 Sep - 22 Sep	Wizz Air UK
10 Sep - 26 Sep	Qatar Airways
25 Sep - 22 Oct	Qatar Airways
13 Sep - 01 Oct	Qatar Airways
12 Sep - 21 Sep	Qatar Airways
19 Sep - 30 Sep	Qatar Airways
07 Sep - 25 Sep	British Airways
22 Sep - 30 Sep	British Airways

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 542€

Return flights