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

Return flights

16 Sep - 06 Oct	Wizz Air Malta
07 Sep - 27 Sep	Wizz Air UK
20 Sep - 25 Sep	Wizz Air UK
09 Sep - 23 Sep	Wizz Air UK
09 Sep - 25 Sep	Wizz Air UK
20 Sep - 23 Sep	Wizz Air UK
06 Sep - 09 Sep	Wizz Air UK
13 Sep - 25 Sep	Wizz Air Malta
08 Sep - 22 Sep	Wizz Air UK
24 Sep - 08 Oct	Wizz Air Malta
10 Sep - 23 Sep	Wizz Air Malta
06 Sep - 21 Sep	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air Malta
27 Sep - 04 Oct	Wizz Air UK
27 Sep - 22 Oct	easyJet
29 Sep - 06 Oct	Wizz Air Malta
26 Sep - 22 Oct	Turkish Airlines
26 Sep - 16 Oct	Gulf Air
26 Sep - 14 Oct	Gulf Air
16 Sep - 14 Oct	Turkish Airlines

Also check the deals for one-way flights from London to Karachi 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 Karachi in September from $404

Return flights