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

Return flights

01 Oct - 04 Oct	AirAsia X
01 Oct - 20 Oct	AirAsia X
07 Oct - 20 Oct	AirAsia X
31 Oct - 03 Nov	China Southern
01 Oct - 03 Oct	AirAsia X
01 Oct - 14 Oct	AirAsia X
07 Oct - 14 Oct	AirAsia X
27 Oct - 31 Oct	Air China
10 Oct - 14 Oct	Vietnam Airlines
11 Oct - 14 Oct	Vietnam Airlines
10 Oct - 20 Oct	AirAsia X
31 Oct - 09 Nov	AirAsia X
11 Oct - 01 Nov	Thai AirAsia X
27 Oct - 09 Nov	Thai AirAsia X
27 Oct - 01 Nov	Thai AirAsia X
31 Oct - 01 Nov	AirAsia X

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

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 Osaka to Phnom-penh in October from $409

Return flights