Thanks guys!
One-way tickets are quite expensive so I am leaning towards yvr76's suggestion.
So is the $90 change fee constant regardless of how much taxes or flight segments your return flight is?
Also, for 75K points, can you stop over in Asia twice? I was thinking YYC-ICN, then ICN-LHR, then after 2 years, LHR-BKK and finally BKK-YYC. Is this possible for 75K points? Also, if I push back the dates for LHR-BKK and BKK-YYC to what I want, it only costs $90 for both?
Thanks guys. This will be my first time redeeming points lol.