The banner on AC.com has updated to reflect the sale's extension 'til March 7, matching WestJet's extension from a few hours ago. There's no mention of 25% off base fares anymore (just like WestJet's sale) so it really just boils down to what's available and if you're lucky. I had some Google Flight notifications fire that reflect the 25% discount on the base fare on the same flight I booked directly with AC yesterday, only there's no promo code applied when you click through from Google so it looks like a blanket reduction on base fares for dates/itineraries on lucky searches.

Travel dates for the sale are now through Dec. 15

Sale page now says "No blackout dates", whatever the heck that means: https://www.aircanada.com/en-ca/seat...nerdotcom|caen