Here's our next Aeroplan availability alert! There is a bunch of
business class availability showing in April and May 2022 for
flights between Montreal and Zurich on SWISS. The flights operate on all days of the week except Monday and Wednesday. Most of the days we checked they are showing at
least 4 business class seats available per flight in both directions.
There is definitely better availability to Zurich than back but I did find quite a
few days on the return with 4 seats.