Atlantic Superstore flyers St. Catharines - weekly deals

Don't miss the current deals from Atlantic Superstore in St. Catharines.
Thanks to the extensive selection of quality merchandise and exceptional prices at Atlantic Superstore, you're bound to find exactly what you're looking for.

A new Atlantic Superstore flyer has been posted here with incredible specials valid as of Sep 11, 2025.
By the way, did you know that Atlantic Superstore is located in St. Catharines as well as Halifax, Dartmouth, Charlottetown, Moncton, Fredericton and Montreal?

To ensure you find the very best deal, compare prices from other flyers in the Grocery category. Similar businesses include Farm Boy, Food Basics, FreshCo, Giant Tiger, Metro, M&M Food Market, No Frills, Real Canadian Superstore, Sobeys and Walmart.
If you're looking for a particular product from Atlantic Superstore but cannot find it in the current flyer, we encourage you to visit the official web page atlanticsuperstore.ca to find out more.