Originally Posted by
Astrophsx
Not sure how often it pops up, but there I've seen J availability on SQ through Aeroplan that was not available booking directly with SQ (LAX-SIN non-stop). Aeroplan had four seats and SQ only had a waitlist.
But were the seats actually bookable with Aeroplan? This could also indicate that Aeroplan's availability information lags SQ's. Which would be awful when you then transfer points to Aeroplan only to find that you can't book the ticket you want.