Just because we could always use a few more Costco deals, just released is the December 15th Costco Weekly Insider Deals. This weeks Costco coupons run from December 15th through December 21st. This sale runs at the same time as the December 2025 Costco Coupon Book and the Costco Holiday Event Coupons 2025. If you want to get notified as soon as we release the upcoming Costco February 2026 Coupon Book then make sure to sign up for our email list, follow us on Instagram and Like us on Facebook!

This Costco ad is focused on Christmas dinner. You’ve got the Kirkland Signature Choice Seasoned Bone-In Rib Roast (Prime Rib) at $17.99 per lb, which makes a great main course for Christmas dinner. You’ve got the Kirkland Signature Italian Sausage and Beef Lasagna, which could be the main course or a great side or alternative option. You’ve got some really nice Snow Crab Cocktail Claws that are new to Costco and are selling for $31.99 per lb. There’s also a few different items that would make a great last minute Christmas gift, like a KitchenAid mixer.

Depending on location the pricing may vary in Alaska, Hawaii, Puerto Rico and online. Select items might not be available in all locations. Anything you’re going to pick up at Costco this week? Leave a comment and let us know!

All the Costco Holiday 2025 Coupons

December 2025 Costco Coupon Book (Nov 17th – Dec 21st)
Costco Holiday Handout 2025 (Dec 6th – Dec 24th)
December 15th Weekly Insider Deals (Dec 15th – Dec 21st)
January 2026 Costco Coupon Book (Dec 22nd – Jan 19th)

Here’s a few of the deals in the Costco December 15th 2025 Weekly Insider Deals:

• Seasonal Item – Kirkland Signature Choice Seasoned Bone-In Rib Roast $17.99 per lb
• Kirkland Signature Italian Sausage and Beef Lasagna $6 off
• Kirkland Signature Farm-Raised Raw Shrimp, Tail-On, 2 lbs $17.99 – $4 off = $13.99
• Kirkland Signature Baguettes $4.99 – $1 off = $3.99
• Kirkland Signature Vanilla Creme Brulee Bar Cake $18.99 – $3 off = $15.99
• New Item – Snow Crab Cocktail Claws $31.99 per lb
• IZZE, Sparkling Juice Beverage, Variety Pack $3.40 off
• Best Foods or Hellmann’s Real Mayonnaise 2pk $3 off
• and more…