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

Return flights

01 Dec - 13 Dec	China Southern
06 Dec - 27 Dec	Air China	direct
06 Dec - 21 Dec	Air China
06 Dec - 01 Jan	Air China	direct
25 Dec - 01 Jan	Air China	direct
11 Dec - 13 Dec	British Airways
25 Dec - 06 Jan	Air China
27 Dec - 10 Jan	Air China	direct
24 Dec - 31 Dec	Finnair
13 Dec - 20 Dec	Aegean Airlines
04 Dec - 03 Jan	Brussels Airlines
23 Dec - 20 Jan	China Southern
20 Dec - 20 Jan	British Airways
20 Dec - 01 Jan	British Airways
13 Dec - 01 Jan	Scandinavian Airlines
22 Dec - 20 Jan	China Southern

Also check the deals for one-way flights from London to Chengdu 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 Chengdu in December from $575

Return flights