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

Return flights

15 Dec - 13 Jan	Hainan Airlines
03 Dec - 12 Dec	China Eastern
22 Dec - 12 Jan	Air Japan
11 Dec - 15 Jan	KLM
05 Dec - 12 Dec	China Eastern
20 Dec - 10 Jan	China Eastern
24 Dec - 09 Jan	Jeju Air
30 Dec - 07 Jan	MIAT Mongolian Airlines
04 Dec - 08 Dec	KLM
08 Dec - 15 Dec	Jeju Air
04 Dec - 09 Dec	KLM
04 Dec - 07 Dec	KLM
05 Dec - 09 Dec	Jeju Air
03 Dec - 06 Dec	KLM
03 Dec - 20 Jan	KLM
16 Dec - 26 Dec	Jeju Air
14 Dec - 29 Dec	Sichuan Airlines
18 Dec - 06 Jan	Thai AirAsia X
22 Dec - 09 Jan	Turkish Airlines
16 Dec - 20 Jan	Turkish Airlines

Also check the deals for one-way flights from Tokyo to Helsinki 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 Helsinki in December from 654€

Return flights