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

Return flights

30 Dec - 09 Jan	Finnair
30 Dec - 08 Jan	Finnair
20 Dec - 31 Dec	Hong Kong Airlines
30 Dec - 06 Jan	Finnair
08 Dec - 15 Dec	China Eastern
21 Dec - 30 Dec	Juneyao Airlines
27 Dec - 31 Dec	China Eastern
23 Dec - 01 Jan	China Eastern
27 Dec - 05 Jan	China Eastern
24 Dec - 05 Jan	Finnair
21 Dec - 31 Dec	HK Express
20 Dec - 29 Dec	Hong Kong Airlines
23 Dec - 04 Jan	Juneyao Airlines
29 Dec - 06 Jan	Finnair
18 Dec - 27 Dec	Hainan Airlines
20 Dec - 30 Dec	Cathay Pacific
10 Dec - 17 Dec	China Eastern
21 Dec - 03 Jan	HK Express
21 Dec - 29 Dec	Juneyao Airlines
24 Dec - 04 Jan	Qatar Airways

Also check the deals for one-way flights from Hong Kong to Keflavik 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 Keflavik in December from 681€

Return flights