Cheapest one-way flights from Seattle to Tokyo in September from 327€

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

One-Way flights

20 Sep Asiana Airlines
16 Sep Asiana Airlines
21 Sep United direct
09 Sep Asiana Airlines
16 Sep United direct
01 Sep Asiana Airlines
09 Sep United direct
10 Sep United
29 Sep United direct
22 Sep United 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.

Book a cheap hotel in Tokyo

Cheap car rent in Tokyo

Feel free to contact us with any feedback or request another flight research.