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

Return flights

26 Sep - 11 Oct	China Southern
16 Sep - 24 Oct	China Southern
27 Sep - 11 Oct	China Southern
27 Sep - 12 Oct	China Southern
26 Sep - 26 Oct	China Southern
27 Sep - 25 Oct	China Southern
27 Sep - 21 Oct	China Southern
26 Sep - 12 Oct	China Southern
04 Sep - 15 Oct	China Southern
09 Sep - 24 Oct	China Southern
02 Sep - 24 Sep	Ryanair
10 Sep - 24 Sep	Ryanair
03 Sep - 11 Sep	Wizz Air UK
15 Sep - 21 Sep	Wizz Air UK
05 Sep - 08 Sep	Wizz Air UK
12 Sep - 26 Sep	Wizz Air UK
16 Sep - 21 Sep	Wizz Air UK
16 Sep - 22 Sep	Wizz Air UK
15 Sep - 29 Sep	Wizz Air UK
10 Sep - 25 Sep	Ryanair

Also check the deals for one-way flights from London to Kuala Lumpur 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 Kuala Lumpur in September from $534

Return flights