Originally Posted by YYC009

I don't believe that is correct. For through flights you have to be able to get an upgrade for both flights at your origin. If you are flying AC33 YYZ-YVR-SYD you need to be able to clear at YYZ for both YYZYVR and YVRSYD. If you do not clear for both, you cannot be cleared for only YYZYVR or only YVRSYD. I believe there is verbiage about this in the eUpgrade terms. Affected routes are SYD, EZE, and MXP where AC has through flights. Many people chose to take a connecting flight when planning for eUpgrades to avoid this issue. e.g. : the earlier YYZYVR whatever AC1## flight instead of AC33.

AC website (aircanada.com/eupgrade):I am booked on a direct flight from Sydney to Toronto that makes a stop in Vancouver, and my eUpgrade request is waitlisted. If there are not enough seats available on my entire journey at flight closure, will I at least be upgraded between Sydney and Vancouver?

Waitlisted requests on the airport standby list will be accommodated should there be seat availability on the entire journey. Partial upgrades on flights operating with the same flight number are not permitted.