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

Return flights

03 Sep - 25 Sep	Alaska Airlines
16 Sep - 24 Sep	Alaska Airlines
01 Sep - 07 Sep	Hawaiian Airlines
10 Sep - 23 Sep	Alaska Airlines
01 Sep - 12 Sep	Alaska Airlines
17 Sep - 24 Sep	Hawaiian Airlines
30 Sep - 15 Oct	Air Canada
01 Sep - 15 Sep	Alaska Airlines
10 Sep - 17 Sep	Alaska Airlines
03 Sep - 16 Sep	Alaska Airlines
09 Sep - 16 Sep	Alaska Airlines
15 Sep - 08 Oct	Air Canada
22 Sep - 03 Oct	Air Canada
24 Sep - 08 Oct	Air Canada
15 Sep - 05 Oct	Air Canada
28 Sep - 10 Oct	Alaska Airlines
26 Sep - 10 Oct	Alaska Airlines
29 Sep - 11 Oct	Alaska Airlines
28 Sep - 12 Oct	Alaska Airlines
17 Sep - 02 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 $900

Return flights