12 Must-Grab Costco September Bargains Worth Stocking Your Pantry With

The scent of pumpkin spice is in the air, and that can only mean one thing: fall is here. It's the season for baking, family gatherings, and cozy moments with loved ones, but it's also the perfect time to hunt for great deals at your local Costco and stretch your grocery budget.

If your pantry is running low or your cabinets need a refresh, you won't want to miss these 12 incredible September deals.

Editor's note: Prices and availability are subject to change and may vary by location.

Price: $19.99

Don't run out of flour this holiday season or overspend on stockpiling. Next time you're at Costco, pick up a package of Kirkland Signature Organic Unbleached All-Purpose Flour for just under $20. Other stores, such as Walmart, sell organic unbleached flour in two 5-pound bundles at a higher price per ounce.

Price: $16.59

Mixed nuts are a healthy snack for those seeking to boost their intake of heart-healthy omega-3 fatty acids and reduce fried foods. Kirkland Signature Extra Fancy Salted Mixed Nuts offer a unique blend of cashews, almonds, pecans, Brazil nuts, and macadamia nuts, an assortment that's hard to find elsewhere.

Price: $21.99

Chosen Foods 100% Pure Avocado Oil Spray is a zero-calorie option perfect for sauteing, stir-frying, or finishing dishes. Costco sells a two-pack of 13.5-ounce cans for $21.99, which is much cheaper than the manufacturer's price at $31.19. Each can provides easy, mess-free oil for cooking, making this bundle both convenient and budget-friendly.

Price: $16.99

Kirkland Signature Chunk Chicken Breast in a can is a versatile ingredient used in various recipes such as chicken Sonoma salads, chicken cranberry and pecan salads, and chicken casseroles. This makes it a highly popular food item to stock. Currently, this six-count package of 12.5 oz cans is priced at $16.99, which is $0.83 less than Walmart's Great Value brand.

Price: $13.99

Kirkland Signature Organic Tomato Sauce serves as an excellent base for a variety of recipes, including chili, homemade spaghetti sauce, pico de gallo, and more. You can purchase a box of 12 cans, each containing 15 ounces of blended organic and ripe tomatoes, for $13.99, or $1.17 per can.

Price: $13.69

Oatmeal is a healthy breakfast option that is both warm and filling, but plain oatmeal tastes bland to some. For a tasty and convenient twist, try the Quaker's variety pack available at Costco.

This 52-count box, priced at $13.69, includes single-serving packets in apple cinnamon, cinnamon spice, and maple brown sugar flavors. Similar variety packs cost between $18.95 and $23.40 at Walmart, making Costco the more affordable choice.

Price: $13.99

A good peanut butter can elevate a cookie recipe to new heights and add the perfect texture to a Pad Thai. If you're looking to stock up this September, Costco offers a great deal: two 48-ounce jars of Jif Creamy Peanut Butter for only $13.99. In comparison, Walmart sells the same quantity for $19.39.

Price: $12.13

Wild Planet is a trusted brand for canned fish nationwide. At Costco, a 6-count bundle of wild Pacific sardines in extra-virgin olive oil costs $12.02, which is $6.97 less than Walmart's price for the same pack. Each can is packed with sustainably caught Pacific sardines that are lightly smoked and packed in extra-virgin olive oil, delivering 1,800 mg of heart-healthy omega-3 fatty acids per 3-ounce serving.

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Price: $11.99

Mayonnaise brings sandwiches, salads, and even pastas together. Keep your pantry stocked this September with Hellmann's Real Mayonnaise, competitively priced at $11.99 for a 64-ounce jar at Costco, although it often goes on sale. A single bottle typically costs more at Walmart.

Price: $10.99

There's nothing sweeter than baking at home, that is, unless you run out of sugar halfway through. Thankfully, with this Costco deal, you'll always have plenty on hand.

Kirkland Signature Organic Cane Sugar comes in a generous 10-pound bag, giving you plenty for cookies, cakes, and all your favorite treats. At just $1.10 per pound, it's an affordable pantry staple every baker needs.

Price: $11.99

As the colder months approach, nothing beats a warm, steamy bowl of soup or stew. While many premade options are available, there's a special nostalgia that comes from a homemade bowl crafted with creamy chicken stock.

Kirkland Signature Organic Chicken Stock is a popular brand that Costco shoppers frequently purchase in bulk. Currently, six 32-ounce cartons are available for $11.99, which is significantly cheaper than a similarly packaged organic chicken broth at BJ's that costs $14.99.

Price: $8.49

Chopping garlic can be a real challenge, especially for those with arthritis or other conditions that cause hand pain or stiff joints. Kirkland Signature Minced California Garlic saves you the hassle of pre-peeling and mincing 48 ounces of garlic cloves. Once opened, it remains perfectly preserved and refrigerated.

With prices climbing everywhere, it pays to stock up when you spot a good deal. These September finds prove that you don't have to compromise on quality or variety to keep your pantry full.

Costco members are accustomed to getting great deals on their essential purchases, such as pantry staples. However, these items frequently go on sale, so it's a good idea to check weekly ads to save even more money at Costco.