AirHint found the following cheapest return flights from Hong Kong (HKG) to London (LTN) in December 2025 (see full year).

Return flights

24 Dec - 07 Jan	China Eastern
23 Dec - 04 Jan	China Eastern
04 Dec - 11 Dec	Air China
06 Dec - 13 Dec	Air China
11 Dec - 04 Jan	China Eastern
27 Dec - 10 Jan	Air China
12 Dec - 04 Jan	HK Express
05 Dec - 13 Dec	Air China
18 Dec - 10 Jan	China Eastern
30 Dec - 14 Jan	HK Express
25 Dec - 07 Jan	China Eastern
01 Dec - 08 Dec	Air China
15 Dec - 01 Jan	Air China
25 Dec - 08 Jan	China Eastern
09 Dec - 22 Dec	Air China
08 Dec - 17 Dec	Etihad Airways
03 Dec - 10 Dec	China Eastern
18 Dec - 24 Dec	Etihad Airways
20 Dec - 27 Dec	Hainan Airlines
03 Dec - 08 Dec	China Eastern

Also check the deals for one-way flights from Hong Kong to London 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 Hong Kong to London in December from 518€

Return flights