AirHint found the following cheapest return flights from Beijing (PEK) to London (LHR) in September 2025 (see full year).

Return flights

11 Sep - 18 Sep	KLM
17 Sep - 24 Sep	KLM
08 Sep - 15 Sep	Emirates
18 Sep - 25 Sep	KLM
18 Sep - 24 Sep	KLM
17 Sep - 23 Sep	KLM
04 Sep - 11 Sep	KLM
11 Sep - 20 Sep	KLM
15 Sep - 25 Sep	Air France
17 Sep - 27 Sep	KLM
08 Sep - 21 Oct	Emirates
27 Sep - 11 Oct	EgyptAir
29 Sep - 08 Oct	Cathay Pacific
26 Sep - 12 Oct	Emirates
04 Sep - 05 Oct	KLM
27 Sep - 08 Oct	EgyptAir
30 Sep - 12 Oct	Cathay Pacific
19 Sep - 05 Oct	KLM
28 Sep - 08 Oct	Cathay Pacific
26 Sep - 08 Oct	Thai Airways

Also check the deals for one-way flights from Beijing 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 Beijing to London in September from $762

Return flights