Originally Posted by
diablo_josito
For your information, AA137/8 HK DFW will change to AA125/6 next month onwards, I have got notifications for my 3 flights in the next 6 months for such changes. So no way you have the same flight number.
There is one flight to/from LGA that has the same flight number as HKG - DFW. It is still bookable on the AA website. If you take this flight miles will be credited as HKG-LGA direct rather than two separate flights even though a change of plane happens in Dallas.
There are quite a few AA flights like this, see
this thread for details