Cheapest return IAD–NRT flights, September

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

Return flights

08 Sep - 21 Sep Frontier Airlines
07 Sep - 21 Sep Frontier Airlines
01 Sep - 14 Sep Frontier Airlines
15 Sep - 25 Sep Alaska Airlines
02 Sep - 12 Sep Frontier Airlines
17 Sep - 26 Sep Frontier Airlines
15 Sep - 22 Sep Alaska Airlines
05 Sep - 18 Sep Frontier Airlines
14 Sep - 22 Sep Alaska Airlines
04 Sep - 15 Sep Frontier Airlines
24 Sep - 05 Oct Frontier Airlines
29 Sep - 07 Oct Alaska Airlines
29 Sep - 08 Oct Frontier Airlines
30 Sep - 11 Oct Frontier Airlines
23 Sep - 05 Oct Frontier Airlines
02 Sep - 07 Oct Air Canada

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

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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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