Originally Posted by
SFO777
Also odd that I can buy a discounted F ticket on UA.com on a UA code-share on AC metal (LAX/LAS to/from YYZ/YUL) for less than 1/2 the price of the same J class seat on the same AC flight.
But we are talking about an airline whose IT department hasn't been able to get a moving map to function on most planes for a couple of years.

the one through UA is probably a Z class (discounted) ticket. The AC one is probably a full J fare, and not the discounted one.