Originally Posted by
Starman
If you like conspiracy theories, another explanation is that by changing the flight number frequently for a given city pair, COdbaUA does not need to report ontime statistics for that flight to the Department of Transportation, as the flight has "insufficient history." ..
UA has to report all flights, all the time. The problem is services that report ontime by flight number are confused by the changes. Service that report O/D delays work just fine.
Originally Posted by
Starman
... I'm not sure I buy the "more flights than flight numbers" theory, ...
read the reference thread before commenting
One difference today, with the increased size of *A and a larger number of *A codeshares, there are few numbers for UA operated flights