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

Return flights

01 Dec - 12 Dec	Air Canada
07 Dec - 14 Dec	Air Canada
02 Dec - 17 Dec	United
03 Dec - 10 Dec	United
04 Dec - 19 Dec	United
05 Dec - 14 Dec	Air Canada
09 Dec - 16 Dec	United
06 Dec - 13 Dec	Air Canada
26 Dec - 25 Jan	Air Canada
16 Dec - 23 Dec	Air Canada
30 Dec - 05 Jan	Porter Airlines (Canada) Ltd
30 Dec - 07 Jan	Cathay Pacific
15 Dec - 19 Dec	Air Canada
28 Dec - 06 Jan	Cathay Pacific
28 Dec - 11 Jan	Cathay Pacific
26 Dec - 18 Jan	Air Canada
22 Dec - 26 Jan	jetBlue
22 Dec - 25 Jan	Air Canada
20 Dec - 13 Jan	Porter Airlines (Canada) Ltd
21 Dec - 05 Jan	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Boston 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 Boston to Tokyo in December from 922€

Return flights