AirHint found the following cheapest return flights from Washington (DCA) to Tokyo (NRT) in September 2026 (see full year).

Return flights

01 Sep - 22 Sep	Alaska Airlines
02 Sep - 18 Sep	Air Canada
23 Sep - 30 Sep	Air Canada
02 Sep - 02 Oct	Air Canada
18 Sep - 25 Sep	Air Canada
18 Sep - 02 Oct	Air Canada
02 Sep - 12 Sep	Alaska Airlines
20 Sep - 24 Sep	Air Canada
04 Sep - 13 Sep	Air Canada
04 Sep - 15 Sep	Air Canada
25 Sep - 04 Oct	Air Canada

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

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 September from $831

Return flights