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

Return flights

28 Dec - 11 Jan	Finnair
17 Dec - 22 Jan	Lufthansa
22 Dec - 01 Jan	Etihad Airways
01 Dec - 14 Dec	Etihad Airways
23 Dec - 31 Dec	Etihad Airways
06 Dec - 13 Dec	Lufthansa
04 Dec - 18 Dec	Qatar Airways
21 Dec - 05 Jan	Lufthansa
24 Dec - 31 Dec	British Airways
05 Dec - 17 Dec	Etihad Airways
17 Dec - 31 Dec	Lufthansa
19 Dec - 31 Dec	Lufthansa
27 Dec - 03 Jan	Emirates
22 Dec - 29 Dec	Etihad Airways
12 Dec - 19 Dec	Etihad Airways
22 Dec - 03 Jan	Etihad Airways
19 Dec - 03 Jan	Emirates
21 Dec - 03 Jan	Lufthansa
27 Dec - 10 Jan	Cathay Pacific

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 $563

Return flights