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

One-Way flights

17 Sep	China Southern
04 Sep	Scoot Tigerair	direct
05 Sep	Scoot Tigerair	direct
25 Sep	Scoot Tigerair	direct
24 Sep	China Southern
21 Sep	China Southern
02 Sep	China Southern
19 Sep	China Southern
14 Sep	Air Japan	direct
18 Sep	Air Japan	direct

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 $117

One-Way flights