AC SFO-YVR-YYZ-YYT
AC YYT-YYZ-YVR
Booked under multi-city for 25,000 in Y.

U.S. Passenger Safety Fee$2.60

Canada Domestic/International Air Travel Security Charge$7.48

Canada Harmonized Sales Tax$3.64

Canada Domestic/International Airport Improvement Fee$28.00

U.S. International Transportation Tax$18.20

U.S Passenger Facility Charge$4.80

Fuel Surcharge$27.00

Nav Canada - Air Navigation Services$7.50

Total per passenger$99.22

I've never paid less than $100 for a return AP flight before. Let's cross our fingers to see how this upgrading X class thing works out.