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

Return flights

03 Sep - 09 Sep	Flynas
11 Sep - 22 Sep	Turkish Airlines
16 Sep - 24 Sep	Turkish Airlines
15 Sep - 30 Sep	Turkish Airlines
16 Sep - 23 Sep	Qatar Airways
22 Sep - 13 Oct	Qatar Airways
11 Sep - 31 Oct	Qatar Airways
22 Sep - 29 Sep	Qatar Airways
10 Sep - 20 Sep	Qatar Airways
09 Sep - 24 Sep	British Airways
13 Sep - 20 Sep	Qatar Airways
24 Sep - 30 Sep	British Airways
20 Sep - 05 Oct	British Airways
18 Sep - 24 Oct	British Airways
08 Sep - 15 Oct	British Airways
25 Sep - 22 Oct	Turkish Airlines

Also check the deals for one-way flights from Karachi to London 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 Karachi to London in September from $616

Return flights