Vietnam Airlines from Phnom Penh to Osaka has 4 flights every day. And there are 28 flights per week flying out of Phnom Penh which connect to Osaka.
The price for economy class – one way ticket of Vietnam Airlines from Phnom Penh to Osaka is 13.988.000 VND (or ~$697 USD) and the price for bussiness class – one way ticket of Vietnam Airline is 15.938.000 VND (or ~$795 USD).