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

Return flights

13 Sep - 16 Sep	Air Canada
17 Sep - 30 Sep	Alaska Airlines
20 Sep - 30 Sep	Air Canada
10 Sep - 14 Oct	Hawaiian Airlines
17 Sep - 15 Oct	Hawaiian Airlines
10 Sep - 15 Oct	Hawaiian Airlines
09 Sep - 14 Oct	Hawaiian Airlines
07 Sep - 14 Sep	Frontier Airlines
11 Sep - 09 Oct	Air Canada
05 Sep - 15 Sep	Hawaiian Airlines
11 Sep - 14 Oct	Hawaiian Airlines
03 Sep - 16 Sep	Turkish Airlines
04 Sep - 15 Sep	Hawaiian Airlines
12 Sep - 15 Oct	WestJet
22 Sep - 01 Oct	WestJet
05 Sep - 09 Sep	Hawaiian Airlines
12 Sep - 14 Oct	WestJet
01 Sep - 08 Sep	WestJet
18 Sep - 29 Sep	Air Canada
22 Sep - 03 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.

Book a cheap hotel in Tokyo

Cheap car rent in Tokyo

Cheapest return flights from Washington to Tokyo in September from $883

Return flights