Fact-check log
Where the wording is not quite the same
Checked on 15 November 2026. The two notes below are the places where careful sources do not use identical figures or identical phrasing. Both sides are quoted on the pages that use them.
About three hours, or a little less than three and a half?
Encyclopaedia Britannica says the maximum cruising speed allowed the flight time between London and New York to be reduced to about three hours. British Airways, describing a typical crossing, says “a little less than three and a half hours, as opposed to about eight hours for a subsonic flight.” Both figures are kept in view: one is a speed claim turned into a duration, the other is the airline’s wording for a typical service.
Just under 50,000 flights
British Airways says it made just under 50,000 flights and flew more than 2.5 million passengers. National Museums Scotland, writing about British Airways’ Concorde operations between 1976 and 2003, says close to 50,000 flights, more than 140,000 flying hours and 140 million miles, and, separately, that more than 2.5 million passengers have flown supersonically on Concorde since 1976. The numbers sit close together; the wording is not identical.
Every other claim on the site is written to follow a named source, with a footnote back to that source.