Checked AP last night -- good availability of Classic flights for my travel dates this fall.

But when I went back to book this morning, and every single Classic flight on this route has disappeared. Not just for my October dates, but for the next 6 months!? Currently showing only "ClassicPlus" and "Priority Reward" flights until well into the spring!

Issue appears to only be with YYC-YYZ. I checked YYZ-YUL and YYZ-YVR (to make sure I wasn't doing something wrong), and award availability looks 'normal' for both of those routes. Plenty of Classic flight options on most days in the fall. But the YYC availability calendar shows only 'blue' for months and months.

The AP seats out of Calgary obviously can't all be gone. So what gives? Systems glitch??