I saw this recently on BBC News – United plans supersonic passenger flights by 2029 – https://www.bbc.com/news/technology-57361193. It’s a slightly longer article, but here’s enough to give you some basic information.
By Chris Fox June 4, 2021 BBC News
US airline United has announced plans to buy 15 new supersonic airliners and “return supersonic speeds to aviation” in the year 2029.
Supersonic passenger flights ended in 2003 when Air France and British Airways retired Concorde.
–snip–