Cheapest return flights from Sydney to Phnom-penh in October from $535

Best time to book flights for Sydney (SYD) to Phnom-penh (PNH) flights at AirHint

AirHint found the following cheapest return flights from Sydney (SYD) to Phnom-penh (PNH) in October 2025 (see full year).

Return flights

06 Oct - 20 Oct Singapore Airlines
04 Oct - 09 Oct Singapore Airlines
02 Oct - 20 Oct AirAsia X
04 Oct - 20 Oct AirAsia X
02 Oct - 11 Nov AirAsia X
06 Oct - 11 Oct Thai AirAsia X
06 Oct - 09 Oct Thai AirAsia X
02 Oct - 11 Oct AirAsia X
04 Oct - 11 Oct AirAsia X
02 Oct - 09 Oct AirAsia X

Also check the deals for one-way flights from Sydney to Phnom-penh in October.

Skyscanner

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