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

Return flights

04 Dec - 14 Dec	SWISS
01 Dec - 12 Dec	China Eastern
01 Dec - 13 Jan	China Eastern
11 Dec - 21 Dec	Iberia
11 Dec - 23 Dec	KLM
09 Dec - 23 Dec	KLM
02 Dec - 15 Dec	KLM
03 Dec - 16 Dec	KLM
08 Dec - 17 Dec	KLM
04 Dec - 17 Dec	KLM
10 Dec - 23 Dec	KLM
08 Dec - 14 Jan	KLM
09 Dec - 14 Jan	KLM
10 Dec - 14 Jan	KLM
11 Dec - 14 Jan	KLM
08 Dec - 13 Jan	KLM
09 Dec - 13 Jan	KLM
10 Dec - 13 Jan	KLM
11 Dec - 13 Jan	KLM
01 Dec - 05 Jan	China Eastern

Also check the deals for one-way flights from Rome 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 Rome to Tokyo in December from $616

Return flights