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

One-Way flights

01 Dec	Frontier Airlines
09 Dec	Hawaiian Airlines
14 Dec	Frontier Airlines
31 Dec	Korean Air
15 Dec	Frontier Airlines
16 Dec	Frontier Airlines
22 Dec	United
29 Dec	Emirates
21 Dec	Delta
19 Dec	Turkish Airlines

Also check the deals for return 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 one-way flights from Washington to Tokyo in December from 480€

One-Way flights