Cheapest one-way flights from Seattle to Tokyo in December from $299

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

One-Way flights

03 Dec Asiana Airlines
01 Dec Asiana Airlines
31 Dec WestJet
07 Dec Asiana Airlines
29 Dec Asiana Airlines
03 Dec Alaska Airlines direct
07 Dec Alaska Airlines direct
11 Dec Air Canada
01 Dec Hawaiian Airlines direct
31 Dec Japan Airlines 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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