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

Return flights

16 Sep - 30 Sep	Air Canada
12 Sep - 22 Sep	Turkish Airlines
14 Sep - 21 Sep	Air Canada
14 Sep - 28 Sep	Air Canada
15 Sep - 28 Sep	Air Canada
17 Sep - 26 Sep	Air Canada
18 Sep - 28 Sep	Air Canada
01 Sep - 12 Sep	Delta
27 Sep - 07 Oct	British Airways

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 894€

Return flights