Hello everyone and I apologize in advance if I posted in the wrong area.

I'm trying to book an award flight from YYZ to EZE returning from SCL (Santiago) but seems all the flights on the aeroplan site have a AC portion which causes the taxes to skyrocket.

I know it is possible to book without AC and in turn avoid the taxes as I've seen the topic come up here but I'm not sure how.

If anyone could point me in the right direction it would be greatly appreciated.

Thanks!