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

Return flights

01 Dec - 09 Dec	Turkish Airlines
28 Dec - 18 Jan	Air Canada
05 Dec - 12 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
10 Dec - 15 Jan	Air Canada
27 Dec - 16 Jan	ANA
13 Dec - 17 Dec	Air Canada
27 Dec - 24 Jan	ANA
18 Dec - 25 Dec	Air Canada
28 Dec - 18 Jan	ANA	direct
27 Dec - 04 Jan	Allegiant Air
13 Dec - 07 Jan	Air Canada
22 Dec - 14 Jan	Air Canada
13 Dec - 11 Jan	Air Canada
18 Dec - 27 Dec	Air Canada
19 Dec - 27 Dec	Air Canada
27 Dec - 24 Jan	ANA	direct
23 Dec - 29 Dec	Air Canada
06 Dec - 13 Dec	ANA	direct
22 Dec - 29 Dec	Air Canada

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 $1036

Return flights