The shortest commercial flight in the world takes about two minutes and occurs in Scotland.
Why it is true
The route between the islands of Westray and Papa Westray is only two and a half kilometers long. Under ideal conditions, the plane takes off and immediately begins preparing for landing, making the trip in under a minute.
Source: Guinness Records
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.