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Over 100 Costco Deals That Make Us Love Our Memberships (American Girl & More)

Hip2Save may earn a small commission via affiliate links in this post. Read our full disclosure policy here.

Costco Monthly Deals for September 2018 - Costco shopping carts

Time to head to Costco!

If you’re a Costco member and need to stock the pantry and/or fridge, here are TONS of new Instant Savings deals for September 2018 that you can score on P&G products, K-Cups, yummy snacks, American Girl dolls, and much MORE!

Note that all deals are valid through 9/30/2018 and prices may vary by region.

Grocery:

Costco Monthly Deals for September 2018 - Roca caramels at Costco

Brown & Haley Roca Collection Variety Pack 28oz $9.69
Minus $2.70 Instant Savings at checkout
Final cost $6.99!


Hershey’s Nuggets Assortment 145ct $11.99
Minus $3 Instant Savings at checkout
Final cost $8.99!


Keurig Brewed Green Mountain K-Cup Pods 100ct $44.99
Minus $6 Instant Savings at checkout
Final cost $38.99 – just 39¢ each!


Popcornopolis Organic Kettle Corn 24oz $6.99
Minus $2.50 Instant Savings at checkout
Final cost $4.49!


Skinny Pop Popcorn 28ct $12.99
Minus $4 Instant Savings at checkout
Final cost $8.99!


Golden Island Korean Barbecue Recipe Pork Jerky 14.5oz $11.99
Minus $3 Instant Savings at checkout
Final cost $8.99!


Kellogg’s Nutri-Grain Bars Variety Pack 48ct $12.49
Minus $3.70 Instant Savings at checkout
Final cost $8.79!


Glico Pocky Chocolate Cream Covered Biscuit Sticks 12pk 1.4oz $8.69
Minus $2.70 Instant Savings at checkout
Final cost $5.99!


Pirate’s Booty Aged White Cheddar Baked Rice and Corn Puffs 18oz $5.89
Minus $2 Instant Savings at checkout
Final cost $3.89!


Nature Valley Biscuits with Almond Butter 30ct $12.99
Minus $4 Instant Savings at checkout
Final cost $8.99!


Caveman Nutrition Bars Variety Pack 20pk/1.4oz $17.99
Minus $5 Instant Savings at checkout
Final cost $12.99!


Costco Monthly Deals for September 2018 - Hidden Valley Ranch at Costco

Hidden Valley Ranch Dressing 2pk/40 fl oz $9.99
Minus $3 Instant Savings at checkout
Final cost $6.99!


General Mills Lucky Charms Cereal 2pk/23oz $6.99
Minus $2.40 Instant Savings at checkout
Final cost $4.59!


Nature’s Path Organic Pumpkin Seed + Flax Granola 35.3oz $7.49
Minus $2.80 Instant Savings at checkout
Final cost $4.69!


Best Express Organic Aussie Bites 30oz $9.99
Minus $2.50 Instant Savings at checkout
Final cost $7.49!


Annie’s Mac & Cheese Variety Pack 12pk/6oz $12.99
Minus $4 Instant Savings at checkout
Final cost $8.99!


Hormel SPAM 8pk/12oz $17.89
Minus $4 Instant Savings at checkout
Final cost $13.89!


Victoria White Linen Marinara Sauce 2pk/40oz $11.49
Minus $3 Instant Savings at checkout
Final cost $8.49!


Costco Monthly Deals for September 2018 - Nonni's Biscotti at Costco

Nonni’s Almond Dark Chocolate Biscotti 33.2oz $9.99
Minus $3 Instant Savings at checkout
Final cost $6.99!


Harry’s Organic Creamy Tomato Basil Soup 2pk/30oz $9.79
Minus $3 Instant Savings at checkout
Final cost $6.79!


Dannon Danimals Smoothie Variety Pack 36pk/3.1 fl oz $9.99
Minus $3.50 Instant Savings at checkout
Final cost $6.49!


Yoplait Original Lowfat Yogurt Variety Pack 24pk/6oz $9.99
Minus $3 Instant Savings at checkout
Final cost $6.99!


Mini Babybel Cheese Original and/or Light 32pk/0.75oz $10.89
Minus $3.60 Instant Savings at checkout
Final cost $7.29!


CJ Bibigo Chicken & Cilantro Mini Wontons 3lbs $9.99
Minus $3.50 Instant Savings at checkout
Final cost $6.49!


Tyson Crispy Chicken Strips 3lbs $11.99
Minus $3.50 Instant Savings at checkout
Final cost $8.49!


Jimmy Dean Croissant Breakfast Sandwiches 12pk/4.5oz $10.49
Minus $3 Instant Savings at checkout
Final cost $7.49!


Trident Seafoods The Ultimate Fish Stick Wild Alaskan Pollock 4lbs $11.99
Minus $4 Instant Savings at checkout
Final cost $7.99!


Jarlsberg Lite Cheese Slices 2pk/16oz $7.99
Minus $3 Instant Savings at checkout
Final cost $4.99!


Costco Monthly Deals for September 2018 - Taster's Choice at Costco

Nescafe Taster’s Choice House Blend Coffee 14oz $13.99
Minus $4.20 Instant Savings at checkout
Final cost $9.79!


Starbucks French Roast Whole Bean Coffee 2.5lbs $17.99
Minus $4 Instant Savings at checkout
Final cost $13.99!


Starbucks VIA Instant Colombia Coffee 2pk/13ct $14.89
Minus $4 Instant Savings at checkout
Final cost $10.89!


IZZE Sparkling Juice Variety Pack 24pk/8.4 fl oz $14.99
Minus $4 Instant Savings at checkout
Final cost $10.99!


Langers Mango Nectar 128 fl oz $5.99
Minus $2 Instant Savings at checkout
Final cost $3.99!


Horizon Organic Chocolate Lowfat Milk 18pk/8 fl oz $15.99
Minus $5 Instant Savings at checkout
Final cost $10.99!


bai Antioxidant Infusion Variety Pack 15pk/18 fl oz $19.99
Minus $5 Instant Savings at checkout
Final cost $14.99!


S. Pellegrino Sparkling Mineral Water 24pk/0.5L $17.99
Minus $4.50 Instant Savings at checkout
Final cost $13.49!

Personal Care/Health:

Costco Monthly Deals for September 2018 - Avalon Organics at Costco

Avalon Organics Therapy Thickening Shampoo and/or Conditioner 32 fl oz $11.99
Minus $4 Instant Savings at checkout
Final cost $7.99!


LAPCOS Sheet Mask Set 8pk + 2 Bonus Exfoliators $16.99
Minus $5 Instant Savings at checkout
Final cost $11.99!


Sunter LED Vanity Mirror $19.99
Minus $5 Instant Savings at checkout
Final cost $14.99!


Premier Protein Shakes 18pk/11 fl oz $24.99
Minus $5 Instant Savings at checkout
Final cost $19.99!


Ensure Nutrition Shakes 30pk/8 fl oz $32.99
Minus $7.50 Instant Savings at checkout
Final cost $25.49!


Centrum Multivitamin 365ct + 60ct $18.99
Centrum Silver Multivitamin 325ct $18.99
Trunature Grape Seed & Resveratrol 150ct $19.99
Minus $3.70 Instant Savings at checkout
Final cost $15.29-$16.29!


One A Day 50+ Multi Men’s and or Women’s 220ct $17.99
Citracal Calcium Citrate + D3 280ct $17.49
Focus Factor 150ct $18.99
Minus $4 Instant Savings at checkout
Final cost $13.49-$14.99!


Costco Monthly Deals for September 2018 - Airborne at Costco

Airborne Gummies Assorted Fruit Flavors 75ct $18.99
Airborne Effervescent Tablets 2pk/18ct $16.29
Schiff Digestive Advantage Probiotic Gummies 120ct $19.39
Breathe Right Extra Nasal Strips Clear and/or Tan 72ct $21.49
Minus $4 Instant Savings at checkout
Final cost $12.29-$17.49!


Claritin Tablets 10mg, 45ct+ 60ct $39.99
Claritin RediTabs 10mg, 60ct $28.99
Claritin Children’s Grape Chewable Tablets 50ct $29.99
Minus $6 Instant Savings at checkout
Final cost $22.99-$33.99!


Nature Made Super B-Complex 460ct $14.99
Nature Made Magnesium 400mg, 150ct $12.99
Nature Made Organic Flaxseed Oil 1,400mg, 300ct $15.49
Minus $3 Instant Savings at checkout
Final cost $9.99-$12.49!


Nature Made SAM-E Complete 400mg, 60ct $39.99
Nature Made Triple Flex Triple Strength 200ct $24.99
Nature Made CoQ10 200mg, 140ct $34.99
Minus $8 Instant Savings at checkout
Final cost $16.99-$31.99!


Natrol 5-HTP Plus 100mg, 150ct $19.99
Natrol Melatonin 5mg 250ct $11.99
Natrol Biotin 5,000mcg, 250ct $11.99
Minus $4 Instant Savings at checkout
Final cost $7.99-$15.99!


Kirkland Signature Daily Multivitamin 500ct $12.69
Kirkland Signature Vitamin E 400 I.U, 500ct $9.99
Kirkland Signature Fish Oil 1,000mg, 400ct $9.99
Kirkland Signature Vitamin D3 2,000 I.U, 600ct $9.99
Minus $2.50 Instant Savings at checkout
Final cost $7.49-$10.19!


Kirkland Signature CoQ10 300mg, 100ct $19.99
Kirkland Signature Adult Vitamin C Gummies 2pk/180ct $13.49
Kirkland Signature Optifiber Fiber Supplement 25.6oz $14.99
Nature’s Bounty Maximum Strength Fish Oil 1,400mg, 130ct $19.99
Minus $4 Instant Savings at checkout
Final cost $9.49-$15.99!


Kirkland Signature Naproxen Caplets 400ct $12.49
Kirkland Signature Extra Strength Acetaminophen Caplets 2pk/500ct $8.49
Minus $2 Instant Savings at checkout
Final cost $6.49-$10.49!


Kirkland Signature Aller-Fex 180mg, 180ct $33.99
Minus $7 Instant Savings at checkout
Final cost $26.99!


Kirkland Signature AllerClear 10mg, 365ct $12.49
Minus $3 Instant Savings at checkout
Final cost $9.49!


Kirkland Signature Aller-Tec 10mg, 365ct $13.99
Minus $3 Instant Savings at checkout
Final cost $10.99!


Costco Monthly Deals for September 2018 -Norelco at Costco

Philips Norelco Shaver 5675 $99.99
Minus $30 Instant Savings at checkout
Final cost $69.99!


Philips Norelco Multigroom All-in-One Trimmer $49.99
Minus $15 Instant Savings at checkout
Final cost $34.99!


Philips Sonicare 5000 ProtectiveClean Rechargeable Toothbrush 2pk $99.99
Minus $30 Instant Savings at checkout
Final cost $69.99!


Waterpik Ultra & Nano Water Flosser Combo $79.99
Minus $20 Instant Savings at checkout
Final cost $59.99!

Baby:

Costco Monthly Deals for September 2018 - Huggies diapers at Costco

Huggies Plus Diapers (excludes Huggies Overnites) $42.99
Minus $8.50 Instant Savings at checkout
Final cost $34.49!

Household/Pet:

Costco Monthly Deals for September 2018 - P&G promotion at Costco

Spend $100 on select P&G products after discounts ✨ = $25 Costco Cash Card (limit 2)
-Valid in warehouse and online


✨Cascade Complete Action Pacs 90ct and/or Platinum Pacs 92ct $15.99-$19.99
Minus $4 Instant Savings at checkout
Final cost $11.99-$15.99!


✨ Tide Laundry Detergent with Downy 150 fl oz, 110 loads $19.99
Minus $4.50 Instant Savings at checkout
Final cost $15.49!


✨ Buy Tide Pods Spring Meadow 152ct $29.79 AND Bounce Dryer Sheets 2pk/160ct $9.69
Total for both =
Minus $8 Instant Savings off your total purchase at checkout
Final cost $39.48 for both!


✨ Febreze Air Effects 4pk and/or Car Vent Clips 5ct $7.99-$8.99
Minus $2 Instant Savings at checkout
Final cost $5.99!


✨ Mr. Clean Magic Eraser 11ct and/or Swiffer 21-piece Starter Kit $9.99-$12.79
Minus $3 Instant Savings at checkout
Final cost $6.99-$9.79!


✨ Charmin Ultra Soft Bath Tissue 30pk/221 Sheets $21.49
Minus $4.50 Instant Savings at checkout
Final cost $16.99!


Costco Monthly Deals for September 2018 - Charmin toilet paper at Costco

✨ P&G Deal Scenario:

Buy 2 Tide Laundry Detergent with Downy, 150 oz $19.99
Buy 2 Charmin Ultra Soft Bath Tissue, 30 ct $21.49
Buy 2 Cascade Complete ActionPacs, 90 ct $15.99
Buy 2 Febreze Air Effects, 4 ct $7.99
Total = $130.92
Minus $4.50 Instant Savings for buying Tide (will deduct $9)
Minus $4.50 Instant Savings for buying Charmin (will deduct $9)
Minus $4 Instant Savings for buying Cascade (will deduct $8)
Minus $2 Instant Savings for buying Febreze (will deduct $4)
Pay $100.92
Submit for $25 Costco Cash Card when you spend $100
Final cost $75.92 total – just $9.49 each!


Hefty Super Weight 8 7/8″ Foam Plates 220ct $10.99
Minus $3.60 Instant Savings at checkout
Final cost $7.39!


Windex Original 32 fl oz Trigger + 176 fl oz Refill $11.99 and/or
Scrubbing Bubbles 2pk/20 fl oz + 2pk/25 fl oz $11.49
Minus $3.50 Instant Savings at checkout
Final cost $7.99-$8.49!


all Free & Clear and/or Stainlifter Liquid Laundry Detergent 237 fl oz, 158 loads $14.99
Minus $4 Instant Savings at checkout
Final cost $10.99!


Costco Monthly Deals for September 2018 - Bona cleaner at Costco

Bona Hardwood Floor Cleaner Concentrate 32 fl oz Trigger + 128 fl oz Refill $19.89
Minus $6 Instant Savings at checkout
Final cost $13.89!


ECOS Magnolia & Lily Scent Laundry Detergent 210 fl oz, 210 loads $12.49
Minus $4.50 Instant Savings at checkout
Final cost $7.99!


Duracell Alkaline AA 40ct and/or AAA Batteries 32ct $15.99
Minus $3 Instant Savings at checkout
Final cost $12.99!


Scoop Away Cat Litter 42lbs $12.99
Minus $3.30 Instant Savings at checkout
Final cost $9.69!


Nylabone Natural NUBZ Edible Dog Chews 22ct $12.49
Minus $5 Instant Savings at checkout
Final cost $7.49!


Tyson Top Chews Chicken Pot Pie Recipe Dog Treats 40oz $17.59
Minus $4.30 Instant Savings at checkout
Final cost $13.29!

Home/Kitchen:

Costco Monthly Deals for September 2018 - LED lights at Costco

Feit Electronic 48′ LED String Lights $49.99
Minus $10 Instant Savings at checkout
Final cost $39.99!


Feit Electric USB Wall Outlets with 2 USB Ports 2pk $19.99
Minus $5 Instant Savings at checkout
Final cost $14.99!


Hansgrohe Lacuna Pull-Down Kitchen Faucet $199.99
Minus $50 Instant Savings at checkout
Final cost $149.99!


Altair Outdoor LED Coach Light $34.99
Minus $10 Instant Savings at checkout
Final cost $24.99!


Shark ION Flex Cordless UF280 $349.99
Minus $70 Instant Savings at checkout
Final cost $279.99!


Shark Powered Lift-Away UV810 $249.99
Minus $50 Instant Savings at checkout
Final cost $199.99!


Panasonic HomeHawk 1080p Security Camera $99.99
Minus $20 Instant Savings at checkout
Final cost $79.99!


Mirage 5-Piece LED Candle Set $39.99
Minus $20 Instant Savings at checkout
Final cost $19.99!

Office/Electronics:

Costco Monthly Deals for September 2018 - HP OfficeJet Printer at Costco

HP Officejet Pro 6958 All-in-One Inkjet Printer $119.99
Minus $60 Instant Savings at checkout
Final cost $59.99!


Dell Inspiron 15.6″ 5000 Series 1080p Touchscreen Laptop $699.99
Minus $100 Instant Savings at checkout
Final cost $599.99!


Type-S Comfort Gel Seat Cushion $19.99
Minus $5 Instant Savings at checkout
Final cost $14.99!

Clothing:

Puma Men’s French Terry Pant $19.99
Minus $4 Instant Savings at checkout
Final cost $15.99!

Exclusive Buyers’ Picks:

NOTE: The following deals are not Instant Savings deals, but are exclusive favorites from Costco shoppers…and there are some fantastic deals too! Limit 10 per item.

Costco Monthly Deals for September 2018 - American Girl WellieWishers at Costco

American Girl WellieWishers Doll and Accessory Set
Only $79.99


DSI 15″ Dimmable Crystal LED Ceiling Light
Only $69.99


Skyway Whidbey 30″ Rolling Duffel
Only $34.99


Pulaski Fabric Power Recliner with Heat and Vibrating Massage
Only $349.99


Sky Phantom Video Drone
Only $29.99


Feit Motion Sensor 4′ LED Utility Light
Only $24.99


Eva NYC 10-in-1 Hair Primer 2pk 6 fl oz
Only $9.99 – just $5 per bottle!


Costco Monthly Deals for September 2018 - Cuisinart Knife Set at Costco

Cuisinart 6-Piece Metallic Coated Knife Set
Only $12.99


800 Thread Count CVS Queen Sheet Set
Only $19.99


Neatfreak 16-Compartment Storage Cubby
Only $29.99


Peet’s Coffee Yosemite Organic K-Cups 54ct
Only $19.99 – just 37¢ each!


Over & Back Porcelain Bowl Set 4pk
Only $9.99


Eddie Bauer Ladies Quilted Jacket
Only $24.99


Costco Monthly Deals for September 2018 - Women's Sherpa Flannels at Costco

Boston Traders Ladies’ Hooded Sherpa-Lined Flannel
Only $12.99


Felina Ladies Long-Sleeve Tee and/or Turtleneck 2pk
Only $14.99


Weatherproof Vintage Men’s Reversible Vest
Only $14.99


Orvis Men’s Signature Sweatshirt
Only $19.99


G.H. Bass Men’s Twill Pant
Only $16.99


Khombu Men’s Boot
Only $24.99


HAPPY SHOPPING! 🛒

Join The Discussion

Comments 24

  1. Bunny

    We are crazy about the Chicken & Cilantro Mini Wontons. They make an easy, quick dinner on nights when I don’t want to turn on the oven. We pair it with a huge salad and DONE!

    • Amber (Hip2Save Sidekick)

      YUM! Thanks for sharing!

  2. Candace Guidry

    I’ll be stocking up on the Premier Protein Shakes! My kids love to have them for breakfast or a quick lunch.

    • Liza (Hip2Save Sidekick)

      Awesome! Thanks for sharing your favorite deal Candace! 🙂

    • SONYA

      I use Premier Protein Shakes as coffee creamer. The caramel is GREAT!!! 🙂

  3. Hihash

    There is a small typo on the men’s puma pant. The prices need to be switched; most likely. 🙂

    • Liza (Hip2Save Sidekick)

      I’ve updated the price on these, thanks Hihash! 🙂

  4. llc

    math error for the kitty litter.

    • Liza (Hip2Save Sidekick)

      You’re right llc! I’ve updated the Scoop Away price, thank you!

  5. Abc

    Spelling error on Starbucks Colombia coffee, (Columbia)

    • Liza (Hip2Save Sidekick)

      Thanks for catching Abc! Fixing the typo now! 🙂

    • Dylan Fan

      There’s no typo. It is Colombian coffee, as in the country.

  6. allie

    Error : 19.99-4=15.99 not 24.99 lol
    Puma Men’s French Terry Pant $19.99
    Minus $4 Instant Savings at checkout
    Final cost $24.99!

    • Liza (Hip2Save Sidekick)

      This has been updated now Allie, thank you so much for catching!

  7. Sam

    Rica is my favorite but our store don’t carry them.:(

  8. Lindsey

    How long will these sales go till?

    • Amber (Hip2Save Sidekick)

      Hi there! These are good through September! 🙂

  9. LaToya

    Does anyone know if the Christmas stuff is out yet?
    I need some ribbon and if I go too early it’s not out yet and if I go too late, they variety is gone.

    • Melissa

      I noticed that my Costco has those mint truffles in the green wrapper…they only have them around Christmas, so I wouldn’t be surprised if they had Christmas ribbon. You can always call before you go!

  10. Ash

    I went yesterday and found super warm winter coats for kids at $19.99 each. (We bought 2t and 5t) Such a good deal!! They also were selling a Harvest Spice Cheesecake. I’d never tried it before and it was sooo good. Had to buy one.

    • Liza (Hip2Save Sidekick)

      Oh YUM! That cheesecake sounds so good! And glad you were able to grab coats for your kids!

  11. laura fuller

    Don’t forget , my local Aloha, OR costco has women’s Fila trail shoes (grey/purple) for only $15.99 with instant savings. I scored a pair on Friday Sept. 7th.

    • Holly (Hip2Save Sidekick)

      Thanks for the heads up!

  12. Danielle

    When I first saw this post at the beginning of September, I did not think anything of it. I flew to California last week, and when I fly I always take treats for the flight crew. While I was in California, I needed to grab something for the flight crew for the return trip. I was making a costco run while in California anyway, I thought I would grab a bag of the Lindor Truffles. I picked up some of the Almond Roca as well for the crew. Today, I made another trip to Costco, and I purchased 4 more bags of the Almond Roca for Christmas. I can divide the bags for a litttle extra for teacher’s Christmas gifts. For $6.99, that is the best price anywhere for the 28 ounce. I may have to buy some more nbags for my dad’s nurses for Christmas.

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