AirHint found the following cheapest one-way flights from San Diego (SAN) to Tokyo (NRT) in September 2025 (see full year).

One-Way flights

05 Sep	Hawaiian Airlines
30 Sep	Spirit Airlines
08 Sep	Spirit Airlines
15 Sep	Frontier Airlines
01 Sep	Spirit Airlines
07 Sep	Spirit Airlines
14 Sep	Spirit Airlines
29 Sep	United
21 Sep	United
26 Sep	United

Also check the deals for return flights from San Diego 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 one-way flights from San Diego to Tokyo in September from 293€

One-Way flights