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

Return flights

02 Dec - 10 Dec	Air Canada
03 Dec - 12 Dec	Air Canada
03 Dec - 09 Dec	Air Canada
01 Dec - 05 Dec	Air Canada
05 Dec - 12 Dec	Air Canada
01 Dec - 14 Dec	Air Canada
06 Dec - 20 Dec	Air Canada
26 Dec - 16 Jan	Air Canada
09 Dec - 23 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
15 Dec - 30 Jan	Air Canada
25 Dec - 15 Jan	American Airlines
24 Dec - 15 Jan	Air Canada
16 Dec - 30 Jan	Air Canada
17 Dec - 30 Jan	Air Canada
26 Dec - 16 Jan	ANA	direct
30 Dec - 10 Jan	Air Canada
26 Dec - 09 Jan	United
27 Dec - 09 Jan	United
02 Dec - 10 Dec	ANA	direct

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 809€

Return flights