Cheapest one-way flights from Seattle to Tokyo in September from $350

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

One-Way flights

07 Sep Asiana Airlines
01 Sep Asiana Airlines
28 Sep Asiana Airlines
27 Sep Asiana Airlines
16 Sep Asiana Airlines
30 Sep Alaska Airlines
07 Sep Alaska Airlines direct
03 Sep Alaska Airlines direct
11 Sep Hawaiian Airlines
18 Sep Asiana Airlines

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

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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