Cheapest return flights from London to Islamabad in September from $695

Best time to book flights for London (LHR) to Islamabad (ISB) flights at AirHint

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

Return flights

02 Sep - 02 Oct Etihad Airways
02 Sep - 07 Oct Etihad Airways
14 Sep - 30 Sep Etihad Airways
22 Sep - 29 Sep Etihad Airways
10 Sep - 22 Sep Etihad Airways
16 Sep - 23 Sep Etihad Airways
01 Sep - 25 Sep Etihad Airways
02 Sep - 24 Sep Etihad Airways
10 Sep - 25 Sep Etihad Airways
16 Sep - 30 Sep Etihad Airways
04 Sep - 23 Sep Etihad Airways
15 Sep - 29 Sep Etihad Airways
16 Sep - 06 Oct Etihad Airways
16 Sep - 07 Oct Etihad Airways
17 Sep - 06 Oct Etihad Airways
11 Sep - 02 Oct Etihad Airways
30 Sep - 13 Oct Etihad Airways
03 Sep - 13 Oct Etihad Airways
15 Sep - 06 Oct Etihad Airways
09 Sep - 20 Oct Etihad Airways

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

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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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