What Will Happen When The World’s Airlines Run Out Of Flight Numbers?

Numbers stretch up to infinity. But this is not the same for flight numbers. We have some unforgettable flight numbers, such as the MH370, associated with the extraordinary disappearance of a Malaysian Airlines flight, or the BA001, which British Airways used for its Concorde services. Some numbers, such as 13 or 666, are tacitly agreed to not be used for flights.