Originally Posted by
micgolub
If you’re in other parts of the U.S., you’ll still have lots of eligible American flights with an Alaska “AS” flight number to choose from in and out of Chicago, Dallas, Los Angeles and Phoenix. As always, you can find eligible flights on alaskaair.com.
This is not true
The codeshares may exist, but may not be bookable standalone or outside of select markets.
For example, they codeshare DFW-FLL. But you can't book AS coded DFW-FLL on its own. You can book SEA-AS-DFW-AS*-FLL or SNA-AS*-DFW-AS*-FLL.
* Operated by AA