Vietnam Airlines operates regular US direct flight from November 28, 2021.
After 20 years of establishment of representative office in the US, since November 28, 2021, Vietnam Airlines debuts regular direct flights from Vietnam to the US. Thus, Vietnam Airlines has become the first Vietnamese airline to be allowed to operate regular flights to the US.
Source:
https://nhatrang-travel.com/tin-tuc-su-kien/tu-28-11-2021-vietnam-airlines-duoc-bay-thang-thuong-le-tu-v.html