Cheapest one-way flights from Seattle to Tokyo in December from $322

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

One-Way flights

29 Dec Alaska Airlines direct
31 Dec Hawaiian Airlines direct
07 Dec Alaska Airlines direct
08 Dec Alaska Airlines direct
27 Dec Alaska Airlines direct
05 Dec Alaska Airlines direct
28 Dec Alaska Airlines direct
30 Dec Alaska Airlines direct
09 Dec Hainan Airlines
09 Dec Hawaiian Airlines direct

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

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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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