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

Return flights

01 Dec - 21 Dec	Cathay Pacific
25 Dec - 31 Dec	Singapore Airlines
25 Dec - 01 Jan	Singapore Airlines
23 Dec - 05 Jan	Cathay Pacific
28 Dec - 04 Jan	Singapore Airlines
24 Dec - 12 Jan	Singapore Airlines
17 Dec - 16 Jan	Cathay Pacific
11 Dec - 09 Jan	Cathay Pacific
16 Dec - 11 Jan	Cathay Pacific
15 Dec - 12 Jan	Cathay Pacific
22 Dec - 09 Jan	Malaysia Airlines
11 Dec - 11 Jan	Philippine Airlines

Also check the deals for one-way flights from Brisbane 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.

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Cheapest return flights from Brisbane to Phnom-penh in December from 676€

Return flights