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

One-Way flights

02 Sep	Emirates	direct
06 Sep	Emirates	direct
05 Sep	Emirates	direct
07 Sep	Emirates	direct
03 Sep	Emirates	direct
08 Sep	Emirates	direct
01 Sep	Emirates	direct
17 Sep	Cambodia Airways
27 Sep	Cambodia Airways
13 Sep	Cambodia Airways

Also check the deals for return flights from Phnom-penh 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 Phnom-penh to Singapore in September from 74€

One-Way flights