Cheapest return flights from Seattle to Tokyo in September from $613

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

Return flights

07 Sep - 18 Sep Asiana Airlines
09 Sep - 22 Sep Asiana Airlines
15 Sep - 22 Sep Asiana Airlines
08 Sep - 24 Sep Asiana Airlines
01 Sep - 13 Sep Asiana Airlines
18 Sep - 25 Sep Asiana Airlines
16 Sep - 29 Sep Asiana Airlines
06 Sep - 16 Sep Philippine Airlines
20 Sep - 30 Sep Philippine Airlines
17 Sep - 30 Sep Philippine Airlines
15 Sep - 02 Oct Delta direct
23 Sep - 01 Oct United direct
21 Sep - 12 Oct Delta direct
26 Sep - 10 Oct United direct
19 Sep - 10 Oct EVA Air
19 Sep - 10 Oct Delta direct

Also check the deals for one-way flights from Seattle to Tokyo in September.

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