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

Return flights

15 Dec - 23 Dec	AirAsia X
02 Dec - 23 Dec	Thai AirAsia X
15 Dec - 04 Jan	AirAsia X
15 Dec - 31 Dec	AirAsia X
15 Dec - 27 Dec	AirAsia X
15 Dec - 01 Jan	AirAsia X
27 Dec - 31 Dec	EVA Air
29 Dec - 03 Jan	EVA Air
27 Dec - 13 Jan	Thai AirAsia X
31 Dec - 13 Jan	AirAsia X
27 Dec - 10 Jan	Thai AirAsia X
27 Dec - 11 Jan	Thai AirAsia X
31 Dec - 10 Jan	AirAsia X
31 Dec - 11 Jan	AirAsia X
31 Dec - 08 Jan	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.

Book a cheap hotel in Phnom-penh

Cheap car rent in Phnom-penh

Cheapest return flights from Osaka to Phnom-penh in December from $500

Return flights