I wonder if Air Transat are similar in pricing to Westjet on GLA-Canada routes - I was recently booking a trip to Canada for late July '22 & was all set to hit "Pay Now" for GLA-YYZ in Premium Y on the 737Max when an ad popped up on the Westjet site promoting 787 Business Class. Turns out J from LGW was nearly £90 cheaper one way than Y+ from GLA - plus I get higher Flying Blue XP & Miles due to the greater length/higher class of travel. Supply & demand I guess....