Originally Posted by
D582
You can already do that though. I use a US CC to buy from both Canadian and US edition of AC website without issue.
+1. I believe AC determines POS based on the origin of the ticket, not billing address. Unlike UA, which will often show me a very good fare for USA-Canada travel, only to significantly increase the price on me as soon as I put in my (Canadian) billing address, as they determine POS based on billing address.