AirHint found the following cheapest return flights from London (LHR) to Shenzhen (SZX) in December 2025 (see full year).

Return flights

05 Dec - 29 Dec	China Southern
26 Dec - 08 Jan	Shenzhen Airlines
08 Dec - 29 Dec	Shenzhen Airlines	direct
26 Dec - 07 Jan	Shenzhen Airlines
05 Dec - 29 Dec	Shenzhen Airlines	direct
24 Dec - 17 Jan	Shenzhen Airlines	direct
26 Dec - 10 Jan	Tianjin Airlines
25 Dec - 09 Jan	Air China
24 Dec - 07 Jan	Air China
25 Dec - 10 Jan	Air China
13 Dec - 30 Dec	Lufthansa
12 Dec - 31 Dec	Lufthansa
11 Dec - 29 Dec	Lufthansa
12 Dec - 07 Jan	Lufthansa
24 Dec - 12 Jan	Air China
26 Dec - 10 Jan	Shenzhen Airlines	direct
15 Dec - 29 Dec	Iberia
16 Dec - 31 Dec	KLM

Also check the deals for one-way flights from London to Shenzhen 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 Shenzhen in December from 558€

Return flights