Purpose of changing a flight number?

[Kelmn07]

Hello,

 

Back in June I posted about the airline changing my flight. After a few responses I realized I was incorrect and that they actually had changed the time, but that the flight # was the same.

 

Now I've received an email that the actual flight number has changed-and I am curious what the purpose of that is?

 

Just to clarify, my original flight was:

Oct 6 Bos>CDG @ 6:55p Delta flight 48.

Oct 7 CDG>VCE @ 9:50a AF flight 1426,

 

and it was changed to

 

Oct 6 Bos>CDG @ 7:25p Delta flight 48.

Oct 7 CDG>VCE @ 9:50a AF flight 1426.

 

And has now been changed to

Oct 6 Bos>CDG @ 7:25p Delta flight 0577.

Oct 7 CDG>VCE @ 9:50a AF flight 1426

 

Thanks!

[6rugrats]

I could be wrong, but I think it has to do with performance tracking of each flight by the Department of Transportation. If a flight number is not doing well, the airline changes it.

[cindep]

Also, check to see if the type of aircraft has been changed. That will usually create a flight number change as welll.

[CHEZMARYLOU]

Our flight number changed either because the type of aircraft changed (which it did) or because of the Continental-United merger.

 

Mary Lou

[Eng23]

Maybe the flight has been changed to a code share flight on a Delta partner airline, Air France most likely?