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

Return flights

05 Dec - 15 Dec	China Southern
01 Dec - 11 Dec	China Southern
03 Dec - 11 Dec	Zipair
23 Dec - 05 Jan	China Eastern
23 Dec - 06 Jan	China Eastern
03 Dec - 09 Dec	Zipair
31 Dec - 08 Jan	LOT
16 Dec - 24 Dec	Eastar Jet
14 Dec - 25 Dec	Jeju Air
29 Dec - 09 Jan	Jetstar Japan
02 Dec - 12 Dec	Air China
09 Dec - 14 Dec	T'way Air
16 Dec - 22 Dec	Eastar Jet
06 Dec - 14 Dec	Jeju Air
30 Dec - 05 Jan	China Eastern
24 Dec - 07 Jan	Zipair
24 Dec - 06 Jan	Zipair
27 Dec - 10 Jan	Jeju Air
23 Dec - 03 Jan	China Eastern
28 Dec - 06 Jan	T'way Air

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Tokyo to Keflavik in December from $918

Return flights