Vietnam Airlines from Hong Kong to Ho Chi Minh City has 1 flight every day. And there are 7 flights per week flying out of Hong Kong which connect to Ho Chi Minh City.
The price for economy class – one way ticket of Vietnam Airlines from Hong Kong to Ho Chi Minh City is 9.306.000 VND (or ~$463 USD) and the price for bussiness class – one way ticket of Vietnam Airline is 16.113.000 VND (or ~$804 USD).