AA has been totally zero'd out on many days for their lone two AA Connection YYC flights lately, and I'm cursing having several tickets booked on AA because it's so difficult to make any date changes, even for full flex tickets. With Alaska discontinuing YYC service altogether, AA is just a bad option for YYC right now. At least with DL and UA, they will rebook onto WS or AC codeshares respectively with major sked changes or for voluntary changes.