I've been pricing 1way Biz fares YYC-PVR & YVR-PVR on expedia.com & travelocity.com & looking for permissible stopover cities.
Thru fare = about$439 to $470 USD. With a 'bad' stopover it's $1700 to $2100.
DEN prices cheap only in Y on AC/UA/MX. BUT when I phoned AC, she got me $468.46 & told me that YYC-DEN written by AC on UA metal must be in J class, while DEN-PVR/MX must be in C class! I guess the software of Travelocity & Expedia can't handle it.