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

Return flights

01 Dec - 15 Dec	China Southern
21 Dec - 24 Dec	Air China
02 Dec - 15 Dec	Thai AirAsia X
20 Dec - 08 Jan	Air China
22 Dec - 24 Dec	Thai AirAsia X
22 Dec - 26 Dec	Air China
22 Dec - 08 Jan	Thai AirAsia X
24 Dec - 08 Jan	Thai AirAsia X
21 Dec - 08 Jan	AirAsia X
20 Dec - 26 Dec	Thai AirAsia X
22 Dec - 02 Jan	Thai AirAsia X
20 Dec - 02 Jan	Thai AirAsia X
22 Dec - 30 Dec	Thai AirAsia X
20 Dec - 30 Dec	Thai AirAsia X
27 Dec - 03 Jan	EVA Air
28 Dec - 03 Jan	EVA Air
24 Dec - 26 Dec	Thai AirAsia X
24 Dec - 02 Jan	Thai AirAsia X
24 Dec - 30 Dec	Thai AirAsia X
22 Dec - 03 Jan	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 352€

Return flights