It seems like VN will operate the route nonstop as it directly mentions the flying hours and not mention any kind of technical stops or load factors.
https://e.vnexpress.net/news/business/c ... 86594.html
National flag carrier Vietnam Airlines will operate its first regular direct flight to the U.S. on November 28, achieving a dream conceived nearly two decades ago.
The flight will depart from HCMC (SGN) in the evening and arrive at San Francisco (SFO) 13 hours and 50 minutes later, CEO Le Hong Ha said at a press briefing Tuesday.
The return flight will leave SFO on the evening of November 29 (CA time) and arrive in SGN on December 1, 16 hours and 40 minutes later.
The wide-body aircraft Boeing 787-9 Dreamliner will be used for the direct flights.
Initially, there will be two flights a week and this can be increased to seven when the pandemic situation is under control, Ha said.
Vietnam Airlines thus becomes the first Vietnamese carrier to operate regular flight route to the U.S.

http://spirit.vietnamairlines.com/vi/em ... 12305.html

http://www.gcmap.com/mapui?P=sgn-sfo
The flight numbers will be VN98/99. First flight Nov 28th.
How do you think about this development? In terms of potential, profitability and technical aspects.