I thought I'd heard of people doing local sightseeing trips on Concorde but perhaps they were with limited fuel??
They used to do that in old days from Liverpool airport
flew up from Heathrow subsonic and landed in time for the rich people to get to the Grand National
Then took off for a supersonic trip ove the Atlantic while the race was on
landed in time to refuel and take the rich people back to London after the race
My Dad and I used to go and watch every Grand National day
one year we actually went out on the supersonic trip - which was just simply amazing
but she did take off wit absolutely full thrust and just got off the ground in time
which was no bad thing when the viewing point at that time was just behind the start point for take off!!!