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

Return flights

15 Dec - 11 Jan	HK Express
11 Dec - 11 Jan	Air China
15 Dec - 06 Jan	HK Express
17 Dec - 17 Jan	HK Express
11 Dec - 01 Jan	China Eastern
11 Dec - 10 Jan	China Eastern
15 Dec - 07 Jan	China Eastern
01 Dec - 09 Dec	China Eastern
13 Dec - 05 Jan	China Eastern
12 Dec - 01 Jan	China Eastern
15 Dec - 05 Jan	China Eastern
07 Dec - 16 Dec	Air China
04 Dec - 11 Dec	China Eastern
17 Dec - 31 Dec	HK Express
15 Dec - 31 Dec	HK Express
17 Dec - 27 Dec	Air China
11 Dec - 31 Dec	HK Express
05 Dec - 12 Dec	Air China
10 Dec - 28 Dec	HK Express
13 Dec - 21 Dec	Air China

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 432€

Return flights