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

Return flights

01 Dec - 08 Dec	Finnair
02 Dec - 11 Dec	Finnair
09 Dec - 16 Dec	Turkish Airlines
29 Dec - 05 Jan	Lufthansa
05 Dec - 15 Dec	Finnair
13 Dec - 24 Dec	Finnair
17 Dec - 24 Dec	Finnair
14 Dec - 31 Dec	Lufthansa
13 Dec - 18 Dec	Turkish Airlines
23 Dec - 31 Dec	Lufthansa
19 Dec - 30 Dec	Lufthansa
21 Dec - 03 Jan	Turkish Airlines
16 Dec - 02 Jan	Finnair
18 Dec - 04 Jan	Finnair
20 Dec - 03 Jan	Turkish Airlines

Also check the deals for one-way flights from Hong Kong to Lisbon 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 Lisbon in December from $549

Return flights