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

Return flights

29 Dec - 13 Jan	Finnair
24 Dec - 16 Jan	KLM
31 Dec - 11 Jan	Norwegian Air Sweden AOC
30 Dec - 11 Jan	Ryanair
29 Dec - 11 Jan	Ryanair
29 Dec - 06 Jan	Finnair
26 Dec - 17 Jan	Pegasus Airlines
25 Dec - 16 Jan	Norwegian Air Sweden AOC
22 Dec - 31 Dec	Scandinavian Airlines
28 Dec - 05 Jan	Pegasus Airlines
26 Dec - 18 Jan	airBaltic
25 Dec - 31 Dec	Finnair
25 Dec - 31 Dec	Finnair	direct
20 Dec - 28 Dec	Ryanair
23 Dec - 28 Dec	Lufthansa
21 Dec - 28 Dec	Finnair
27 Dec - 28 Dec	Finnair	direct
24 Dec - 30 Dec	Japan Airlines
21 Dec - 22 Dec	Finnair
19 Dec - 22 Dec	Finnair

Also check the deals for one-way flights from Helsinki to Tokyo 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 Helsinki to Tokyo in December from $1109

Return flights