Originally Posted by
sbiddle
I have a UA flight from SFO-LAS in a few weeks that is a Air NZ codeshare on NZ 086 ticket stock. I'm familiar with the SDC rules on UA issued tickets and have changed these a few times in the past as *G, but I'm wondering if anybody has any recent experience of whether UA will change a ticket that's not on UA ticket stock?
You don't want them to do that. They can't reissue the ticket, so you can end up in a bad state: with no reservation for the old flight and no ticket for the new flight.
You can standby for an earlier UA-operated flight. If there are IRROPS, UA can take over the ticket and issue you a new one. But, otherwise, you need to follow NZ's rules, because you have an NZ ticket.