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

Return flights

15 Dec - 07 Jan	Lufthansa
10 Dec - 12 Jan	Lufthansa
15 Dec - 15 Jan	Lufthansa
15 Dec - 14 Jan	Lufthansa
15 Dec - 17 Jan	Lufthansa
27 Dec - 15 Jan	Lufthansa
15 Dec - 08 Jan	Lufthansa
15 Dec - 16 Jan	Lufthansa
15 Dec - 11 Jan	Lufthansa
15 Dec - 10 Jan	Lufthansa
14 Dec - 26 Dec	Air China
15 Dec - 25 Dec	Air China
08 Dec - 16 Dec	Air China
05 Dec - 20 Dec	Air China
06 Dec - 20 Dec	Air China
11 Dec - 23 Dec	Air China
12 Dec - 26 Dec	Air China
01 Dec - 08 Dec	Lufthansa
08 Dec - 23 Dec	Air China
01 Dec - 04 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 462€

Return flights