Cheapest return flights from London to Islamabad in September from $639

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

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

Return flights

01 Sep - 18 Sep Wizz Air UK
17 Sep - 24 Sep Wizz Air UK
26 Sep - 16 Oct Etihad Airways
01 Sep - 07 Oct Qatar Airways
30 Sep - 14 Oct Qatar Airways
16 Sep - 21 Oct Qatar Airways
10 Sep - 21 Oct Qatar Airways
29 Sep - 16 Oct Qatar Airways
08 Sep - 30 Sep Qatar Airways
01 Sep - 26 Sep Qatar Airways
19 Sep - 23 Oct Pegasus Airlines
20 Sep - 18 Oct Etihad Airways
26 Sep - 18 Oct Etihad Airways
27 Sep - 18 Oct Etihad Airways
07 Sep - 29 Sep Pegasus Airlines
09 Sep - 23 Sep Qatar Airways
01 Sep - 23 Sep Qatar Airways
05 Sep - 16 Sep Qatar Airways
08 Sep - 29 Sep Qatar Airways
14 Sep - 29 Sep Qatar 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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