Similar questions, my multi-city trip is LAX-SJC, stop over, SJC-FAI, and my return is FAI-ANC-LAX.
For SDC for my return, I want to change it to FAI-ANC-PDX-ONT (FAI-ANC unchanged).
Provided adding a stop and co-terminal change is allowed, do I request the change 24 hours before my original ANC-LAX lag?