AirHint found the following cheapest one-way flights from Tokyo (HND) to Singapore (SIN) in September 2025 (see full year).

One-Way flights

07 Sep	China Southern
06 Sep	China Southern
17 Sep	China Southern
05 Sep	China Southern
19 Sep	China Southern
02 Sep	China Southern
18 Sep	China Southern
08 Sep	China Southern
24 Sep	China Southern
16 Sep	China Southern

Also check the deals for return flights from Tokyo to Singapore 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 Tokyo to Singapore in September from $115

One-Way flights