Cheapest return flights from Islamabad to London in September from $690

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

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

Return flights

23 Sep - 30 Sep British Airways
17 Sep - 24 Sep British Airways
17 Sep - 29 Sep British Airways
30 Sep - 08 Oct Qatar Airways
30 Sep - 21 Oct Turkish Airlines
30 Sep - 22 Oct Turkish Airlines
12 Sep - 26 Sep Emirates
13 Sep - 13 Oct Emirates
25 Sep - 10 Oct British Airways
16 Sep - 03 Oct British Airways
10 Sep - 28 Sep British Airways
16 Sep - 24 Sep British Airways
28 Sep - 19 Oct British Airways
25 Sep - 06 Oct PIA
27 Sep - 06 Oct PIA
28 Sep - 06 Oct PIA

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