Cheapest one-way flights from Seattle to Tokyo in September from $311

AirHint found the following cheapest one-way flights from Seattle (SEA) to Tokyo (HND) in September 2026 (see full year).

One-Way flights

20 Sep Philippine Airlines
06 Sep Philippine Airlines
15 Sep Philippine Airlines
17 Sep Philippine Airlines
20 Sep ANA direct
06 Sep Delta direct
15 Sep United direct
17 Sep Delta direct

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

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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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