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

Return flights

04 Dec - 07 Dec	Emirates	direct
01 Dec - 08 Dec	Emirates	direct
10 Dec - 16 Dec	Emirates	direct
23 Dec - 25 Dec	Emirates	direct
26 Dec - 31 Dec	Emirates	direct
11 Dec - 20 Dec	Emirates	direct
23 Dec - 28 Dec	Emirates	direct
01 Dec - 11 Dec	AirAsia
01 Dec - 06 Dec	AirAsia
01 Dec - 16 Dec	AirAsia
18 Dec - 07 Jan	AirAsia
27 Dec - 14 Jan	AirAsia
27 Dec - 10 Jan	AirAsia
23 Dec - 10 Jan	AirAsia
27 Dec - 12 Jan	AirAsia
23 Dec - 12 Jan	AirAsia
18 Dec - 02 Jan	AirAsia
27 Dec - 11 Jan	AirAsia
23 Dec - 11 Jan	AirAsia
22 Dec - 10 Jan	AirAsia

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

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.

Book a cheap hotel in Phnom-penh

Cheap car rent in Phnom-penh

Cheapest return flights from Singapore to Phnom-penh in December from $198

Return flights