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

Return flights

09 Dec - 12 Dec	Air China
23 Dec - 01 Jan	China Airlines
30 Dec - 03 Jan	EVA Air
30 Dec - 07 Jan	EVA Air
30 Dec - 11 Jan	EVA Air
25 Dec - 10 Jan	Philippine Airlines
30 Dec - 04 Jan	EVA Air
29 Dec - 03 Jan	EVA Air
27 Dec - 03 Jan	EVA Air
25 Dec - 11 Jan	Thai AirAsia X
27 Dec - 02 Jan	EVA Air
25 Dec - 30 Dec	Thai AirAsia X
25 Dec - 26 Dec	Thai AirAsia X
23 Dec - 30 Dec	Thai AirAsia X
27 Dec - 30 Dec	Thai AirAsia X

Also check the deals for one-way flights from Osaka 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 Osaka to Phnom-penh in December from $376

Return flights