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

Return flights

03 Dec - 10 Dec	Air Canada
08 Dec - 15 Dec	Air Canada
08 Dec - 16 Dec	Air Canada
03 Dec - 17 Dec	Air Canada
03 Dec - 08 Dec	Air Canada
03 Dec - 14 Dec	Air Canada
08 Dec - 21 Dec	Air Canada
12 Dec - 25 Dec	Porter Airlines (Canada) Ltd
16 Dec - 23 Dec	Air Canada
08 Dec - 07 Jan	Air Canada
04 Dec - 14 Dec	Alaska Airlines
08 Dec - 13 Jan	Air Canada
26 Dec - 07 Jan	Air Canada
27 Dec - 10 Jan	Air Canada
11 Dec - 10 Jan	Air Canada
27 Dec - 04 Jan	Air Canada
25 Dec - 06 Jan	Air Canada
16 Dec - 06 Jan	Air Canada
17 Dec - 01 Jan	Air Canada
15 Dec - 08 Jan	Hawaiian Airlines

Also check the deals for one-way flights from Washington 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 Washington to Tokyo in December from $808

Return flights