Moderator, Air Canada; FlyerTalk Evangelist
Join Date: Feb 2015
Location: YYC
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Posts: 18,943
I'm with Twickenham that if you have the Aeroplan miles, this would be a great spot to use them.
To cow's point, I'm not sure that's the case and that you wouldn't get some sort of refund. Worst case scenario, if cow is right, you just tell them you're not cancelling, then don't show up for your return leg.