Cheapest one-way flights from Seattle to Tokyo in December from 333€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Tokyo (HND) in December 2025 (see full year).

One-Way flights

03 Dec Asiana Airlines
08 Dec Asiana Airlines
29 Dec Asiana Airlines
26 Dec Asiana Airlines
29 Dec United direct
08 Dec United direct
03 Dec Delta direct
09 Dec Hawaiian Airlines
10 Dec Alaska Airlines
26 Dec United direct

Also check the deals for return flights from Seattle to Tokyo in December.

Skyscanner

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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