Vietnam Airlines from Bangkok to Moscow has 1 flight every day. And there are 3 flights per week flying out of Bangkok which connect to Moscow.
The price for economy class – one way ticket of Vietnam Airlines from Bangkok to Moscow is 20.507.000 VND (or ~$1023 USD) and the price for bussiness class – one way ticket of Vietnam Airline is 32.939.000 VND (or ~$1645 USD).