As the first and only supersonic commercial jetliner, Concorde was popular with royals, celebrities, and business executives.
The rather short-lived Concorde has set the standard for speed when it comes to civilian aircraft. With a maximum cruise speed of Mach 2.04 (1,350 mph/2,179 kph) at an altitude of 60,000 feet (18,288 ...
Many other factors can also affect journey length.