Moderator: Hawaii-based airlines & Hawai'i forums
Join Date: Mar 2003
Location: Ka ʻĀpala Nui, Nuioka
Programs: NEXUS/Global Entry, Delta, United, Hyatt, IHG, Marriott, and Hertz
Posts: 18,686
Yes, I think you will have to call Air Canada with the Air Canada PNR and they should be able to get your seat assignments. I had to do this for some AC flights booked as award travel on UA's website.