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

Return flights

05 Aug - 18 Aug	Asiana Airlines
03 Aug - 17 Aug	Asiana Airlines
20 Aug - 08 Sep	Philippine Airlines
02 Aug - 19 Aug	ANA	direct
05 Aug - 18 Aug	ANA	direct
03 Aug - 07 Aug	Asiana Airlines
01 Aug - 14 Aug	ANA	direct
03 Aug - 17 Aug	ANA	direct
20 Aug - 08 Sep	United	direct
14 Aug - 27 Aug	Korean Air
15 Aug - 29 Aug	ANA	direct
27 Aug - 31 Aug	Cathay Pacific

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

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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Cheapest return flights from Seattle to Tokyo in August from $614

Return flights