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

Return flights

01 Dec - 08 Dec	Turkish Airlines
03 Dec - 17 Dec	Air Canada
27 Dec - 24 Jan	Air Canada
24 Dec - 30 Dec	Air Canada
15 Dec - 22 Dec	Air Canada
18 Dec - 25 Dec	Air Canada
17 Dec - 24 Dec	Air Canada
20 Dec - 30 Dec	Air Canada
30 Dec - 09 Jan	Air Canada
12 Dec - 05 Jan	Air Canada
21 Dec - 29 Dec	WestJet
23 Dec - 29 Dec	WestJet
26 Dec - 01 Jan	Air Canada
21 Dec - 06 Jan	Air Canada
22 Dec - 29 Jan	Hawaiian Airlines
20 Dec - 01 Jan	Air Canada
20 Dec - 31 Dec	Air Canada
24 Dec - 02 Jan	Air Canada
22 Dec - 02 Jan	WestJet
20 Dec - 02 Jan	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 $1009

Return flights