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

Return flights

31 Dec - 06 Jan	LOT
24 Dec - 01 Jan	LOT
11 Dec - 17 Dec	Qatar Airways
08 Dec - 15 Dec	Emirates
21 Dec - 28 Dec	Turkish Airlines
22 Dec - 29 Dec	Qatar Airways
30 Dec - 07 Jan	Qatar Airways
05 Dec - 11 Dec	Emirates
23 Dec - 30 Dec	Qatar Airways
15 Dec - 22 Dec	Qatar Airways
21 Dec - 29 Dec	Finnair
24 Dec - 29 Dec	Finnair
06 Dec - 13 Dec	Emirates
30 Dec - 06 Jan	Qatar Airways
24 Dec - 03 Jan	Finnair
30 Dec - 05 Jan	Qatar Airways
25 Dec - 05 Jan	Qatar Airways
28 Dec - 01 Jan	Turkish Airlines
25 Dec - 03 Jan	Qatar Airways
28 Dec - 05 Jan	Qatar Airways

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 1083€

Return flights