Cheapest return flights from Seattle to Tokyo in September from $669

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

Return flights

19 Sep - 28 Sep Air Canada
21 Sep - 01 Oct Philippine Airlines
07 Sep - 01 Oct Philippine Airlines
28 Sep - 26 Oct Philippine Airlines
17 Sep - 24 Sep Philippine Airlines
09 Sep - 10 Oct Korean Air
08 Sep - 16 Sep Air Canada
01 Sep - 10 Sep Air Canada
01 Sep - 23 Sep Korean Air
30 Sep - 28 Oct Korean Air
09 Sep - 10 Oct ANA direct
02 Sep - 16 Sep ANA direct
21 Sep - 01 Oct ANA direct
01 Sep - 23 Sep ANA direct
02 Sep - 23 Sep ANA direct
16 Sep - 22 Sep Korean Air
01 Sep - 10 Sep ANA direct
07 Sep - 02 Oct ANA direct
23 Sep - 07 Oct Delta direct
26 Sep - 26 Oct Philippine Airlines

Also check the deals for one-way 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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