Vietnam Airlines from Vientiane to Paris has 3 flights every day. And there are 16 flights per week flying out of Vientiane which connect to Paris.
The price for economy class – one way ticket of Vietnam Airlines from Vientiane to Paris is 25.103.000 VND (or ~$1253 USD) and the price for bussiness class – one way ticket of Vietnam Airline is 51.682.000 VND (or ~$2582 USD).