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

Return flights

25 Sep - 16 Oct	Ryanair
08 Sep - 21 Sep	Ryanair
08 Sep - 14 Sep	Ryanair
12 Sep - 22 Sep	Ryanair
11 Sep - 18 Sep	Ryanair
18 Sep - 05 Oct	Ryanair
26 Sep - 05 Oct	Ryanair
15 Sep - 22 Sep	Ryanair
01 Sep - 14 Sep	Ryanair
22 Sep - 09 Oct	Ryanair
15 Sep - 23 Sep	Ryanair
16 Sep - 23 Sep	Ryanair
12 Sep - 23 Sep	Ryanair
08 Sep - 15 Sep	Ryanair
25 Sep - 14 Oct	Ryanair
08 Sep - 08 Oct	Ryanair
27 Sep - 06 Oct	Ryanair
07 Sep - 07 Oct	Ryanair
21 Sep - 09 Oct	Ryanair
28 Sep - 06 Oct	Ryanair

Also check the deals for one-way flights from London to Beijing 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 Beijing in September from 553€

Return flights