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

Return flights

20 Dec - 06 Jan	Japan Airlines
20 Dec - 28 Dec	Japan Airlines
01 Dec - 13 Dec	Qatar Airways
05 Dec - 12 Dec	Qatar Airways
20 Dec - 27 Dec	Japan Airlines
05 Dec - 11 Dec	Qatar Airways
19 Dec - 25 Dec	Finnair
29 Dec - 07 Jan	Finnair
19 Dec - 26 Dec	Scandinavian Airlines
19 Dec - 28 Dec	Finnair
25 Dec - 06 Jan	Finnair
26 Dec - 05 Jan	Scandinavian Airlines
26 Dec - 02 Jan	Scandinavian Airlines
25 Dec - 03 Jan	Qatar Airways
26 Dec - 04 Jan	Finnair
28 Dec - 03 Jan	Qatar Airways
26 Dec - 03 Jan	Finnair
20 Dec - 21 Dec	Singapore Airlines

Also check the deals for one-way flights from Tokyo 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 Tokyo to Keflavik in December from 1192€

Return flights