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

Return flights

22 Aug - 25 Sep	Emirates	direct
28 Aug - 31 Aug	Emirates	direct
21 Aug - 24 Aug	Emirates	direct
21 Aug - 28 Aug	Emirates	direct
18 Aug - 20 Aug	Emirates	direct
11 Aug - 17 Aug	Emirates	direct
10 Aug - 14 Aug	Emirates	direct
04 Aug - 06 Aug	Emirates	direct
07 Aug - 10 Aug	Emirates	direct
14 Aug - 18 Aug	Emirates	direct
06 Aug - 12 Aug	Emirates	direct
23 Aug - 14 Sep	Emirates	direct
28 Aug - 12 Sep	AirAsia
26 Aug - 12 Sep	AirAsia
31 Aug - 12 Sep	AirAsia
24 Aug - 12 Sep	AirAsia
28 Aug - 10 Sep	AirAsia
26 Aug - 10 Sep	AirAsia
29 Aug - 12 Sep	AirAsia
31 Aug - 10 Sep	AirAsia

Also check the deals for one-way flights from Singapore to Phnom-penh in August.

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 return flights from Singapore to Phnom-penh in August from $193

Return flights