Cheapest one-way flights from Seattle to Tokyo in September from $420

Best time to book flights for Seattle (SEA) to Tokyo (NRT) flights at AirHint

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

One-Way flights

23 Sep Asiana Airlines
10 Sep Asiana Airlines
09 Sep Asiana Airlines
08 Sep Asiana Airlines
01 Sep Asiana Airlines
30 Sep Alaska Airlines
05 Sep Asiana Airlines
23 Sep Alaska Airlines direct
10 Sep Alaska Airlines direct
08 Sep Alaska Airlines direct

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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