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

Return flights

21 Sep - 02 Oct	Wizz Air UK
02 Sep - 01 Oct	Qatar Airways
10 Sep - 24 Sep	Qatar Airways
01 Sep - 01 Oct	Qatar Airways
07 Sep - 27 Sep	Wizz Air UK
04 Sep - 18 Sep	Wizz Air UK
09 Sep - 09 Oct	Qatar Airways
04 Sep - 01 Oct	Qatar Airways
28 Sep - 17 Oct	Qatar Airways
21 Sep - 03 Oct	Qatar Airways
09 Sep - 22 Sep	Qatar Airways
18 Sep - 03 Oct	Wizz Air UK
02 Sep - 10 Oct	Qatar Airways
18 Sep - 15 Oct	Qatar Airways
23 Sep - 29 Sep	Qatar Airways
13 Sep - 26 Sep	Wizz Air
01 Sep - 28 Sep	Qatar Airways
04 Sep - 26 Sep	Qatar Airways
12 Sep - 26 Sep	Qatar Airways
06 Sep - 27 Sep	Qatar 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 550€

Return flights