Originally Posted by
mmike_319
Damn...so is SDC only possible on journeys that are entirely on AC metal? It's an 014 ticket, etc. If so, makes it even more frustrating that I cannot access my CA booking (at least t->24, so far) to select seats or pay upgrade.
It doesn't need to be entirely AC.
But you can only SDC from AC to AC.
PEK-HKG-YVR-YYZ could be SDC'd to PEK-HKG-YYZ. But you can't touch the CA segment.