The Concorde took less than 3½ hours and seated a maximum of 128 passengers.
...
And it was never economically viable.
Concorde economics didn’t work for a whole host of reasons.
They were maintenance monsters, that required almost 4 hour turn times, meaning only one out-back trip a day was possible.
They were wildly expensive to operate because they were as much a POLITICAL development as a tech one, and they were never available in numbers that would drive down costs.
Etc,etc.
Most likely due to regulatory culture on both sides of the Atlantic. Not enough of them flying and a premium fare too. Not to mention, JAL could have given the Concorde a boost if they had invested in them; would have really helped their trans-Pacific business back in the day.
There was an article posted here two years ago predicting a “Concorde II” that would cross the Atlantic in about an hour.