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

Return flights

31 Dec - 11 Jan	LOT
22 Dec - 08 Jan	LOT
22 Dec - 06 Jan	LOT
19 Dec - 30 Dec	Peach
16 Dec - 23 Dec	T'way Air
24 Dec - 30 Dec	LOT
03 Dec - 14 Dec	LOT
28 Dec - 01 Jan	Zipair
05 Dec - 11 Dec	Finnair
05 Dec - 08 Dec	Finnair
04 Dec - 11 Dec	Turkish Airlines
03 Dec - 10 Dec	Emirates
02 Dec - 10 Dec	Emirates
02 Dec - 09 Dec	Emirates
22 Dec - 09 Jan	Qatar Airways
31 Dec - 05 Jan	Finnair
29 Dec - 04 Jan	LOT
22 Dec - 07 Jan	Qatar Airways
31 Dec - 03 Jan	Finnair
22 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 899€

Return flights