Originally Posted by
AKL/XIY
... It would be great if I can fly to Canada with NZ as they have the non-stop flight. It would be great to use AC's upgrade vouchers just to add a bit comfort to this trip. I will find out if I'm allowed to use the vouchers on AC's codeshare flights. I didn't realise US is big and it takes time lol
Sorry to disappoint you:
1) AC's upgrade vouchers can only be used on flights operated by AC and are not valid on codeshare flights
2) Economy RTW tickets book into AC's H class, that means you would have to have the Special System-Wide Upgrade (SSWU) certs and not only the System-Wide certs (SWU) to upgrade. If you have a SSWU, you can get your upgrade confirmed 4 days before departure. See the
"How to upgrade on AC" thread in the Aeroplan forum.