Is there an easy way to check Aeroplan availability on a specific flight(s) for a series of days? I am trying to find Aeroplan availability in Business for AC 050/AC 051 which are the new YYZ-DEL return flights starting this November, and a series of random searches has turned up nothing. Is it likely that these simply would be locked out of Aeroplan availability? I am interested particularly in flights during December. Ideally, I was trying to get one Aeroplan ticket to then match up with one revenue ticket, both in business, but I am stumped as to how to proceed. Insights appreciated.

P.S. I am SE100K, so I am searching for Priority Rewards as well, but nada.