AirHint found the following cheapest return flights from Washington (DCA) to Tokyo (HND) in August 2025 (see full year).

Return flights

22 Aug - 12 Sep	Alaska Airlines
11 Aug - 18 Aug	Air Canada
08 Aug - 26 Aug	Alaska Airlines
23 Aug - 06 Sep	Alaska Airlines
10 Aug - 15 Aug	Air Canada
01 Aug - 11 Aug	Air Canada
27 Aug - 14 Sep	Alaska Airlines
11 Aug - 22 Aug	Alaska Airlines
29 Aug - 13 Sep	Air Canada
01 Aug - 15 Aug	Air Canada
02 Aug - 07 Aug	Air Canada
07 Aug - 20 Aug	Alaska Airlines
14 Aug - 21 Aug	Air Canada
19 Aug - 03 Sep	Air Canada
26 Aug - 09 Sep	Air Canada
19 Aug - 25 Aug	Air Canada
27 Aug - 24 Sep	Air Canada
17 Aug - 01 Sep	Alaska Airlines
28 Aug - 07 Sep	Alaska Airlines
22 Aug - 01 Sep	Air Canada

Also check the deals for one-way flights from Washington 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 Washington to Tokyo in August from $1130

Return flights