AirHint found the following cheapest return flights from Melbourne (MEL) to Phnom-penh (PNH) in March 2026 (see full year).

Return flights

12 Mar - 28 Mar	Singapore Airlines
13 Mar - 10 Apr	Philippine Airlines
28 Mar - 17 Apr	AirAsia X
29 Mar - 17 Apr	AirAsia X
29 Mar - 11 Apr	AirAsia X
29 Mar - 14 Apr	AirAsia X
28 Mar - 11 Apr	AirAsia X
28 Mar - 14 Apr	AirAsia X
29 Mar - 10 Apr	AirAsia X
28 Mar - 10 Apr	AirAsia X
29 Mar - 05 Apr	AirAsia X
12 Mar - 18 Mar	AirAsia X
28 Mar - 31 Mar	Cathay Pacific
29 Mar - 31 Mar	AirAsia X
12 Mar - 31 Mar	AirAsia X

Also check the deals for one-way flights from Melbourne to Phnom-penh in March.

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 Melbourne to Phnom-penh in March from $544

Return flights