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

Return flights

10 Dec - 20 Dec	Fly One
04 Dec - 16 Dec	Pegasus Airlines
10 Dec - 19 Dec	Fly One
06 Dec - 13 Dec	Ryanair
04 Dec - 12 Dec	Pegasus Airlines
10 Dec - 28 Dec	Fly One
01 Dec - 08 Dec	Ryanair
08 Dec - 28 Dec	Ryanair
19 Dec - 19 Jan	Ryanair
05 Dec - 13 Dec	Ryanair
29 Dec - 10 Jan	Ryanair
06 Dec - 28 Dec	Ryanair
05 Dec - 09 Jan	Ryanair
20 Dec - 10 Jan	Pegasus Airlines
20 Dec - 06 Jan	Pegasus Airlines
13 Dec - 02 Jan	Pegasus Airlines
13 Dec - 05 Jan	Pegasus Airlines
06 Dec - 04 Jan	Ryanair
15 Dec - 04 Jan	Ryanair
17 Dec - 06 Jan	Ryanair

Also check the deals for one-way flights from London to Beijing in December.

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 December from 568€

Return flights