Dunkin'

3.8
578 reviews
Decked Out Lattes

About

Coffee ShopDonut ShopBreakfast RestaurantBakeryBagel ShopFast Food RestaurantTake Out Restaurant
Dunkin’ is America’s favorite all-day, everyday stop for coffee, espresso, breakfast sandwiches and donuts. The world’s leading baked goods and coffee chain, Dunkin’ serves more than 3 million customers each day. With 50+ varieties of donuts and dozens of premium beverages, there is always something to satisfy your craving. Dunkin’ is proud to serve Fontana, CA for all breakfast and snacking needs. Stop by today to try a classic favorite or a new featured product!

Details

  • Dine-inAvailable
  • DeliveryAvailable
  • TakeoutAvailable
  • Credit cardAvailable

Location

Dunkin'
9610 Sierra Ave, Fontana, CA
92335, United States

Hours

Reviews

3.8
578 reviews
5 stars
314
4 stars
88
3 stars
41
2 stars
27
1 star
108

What are people saying?

AI-generated from recent customer reviews

Customer Service

Feedback on customer service is mixed; while some customers praised friendly staff, others reported rude behavior and poor service.

Product Quality

Many customers enjoyed the coffee and donuts, but there were numerous complaints about stale products and incorrect orders.

Speed of Service

Service speed varied significantly; some customers experienced quick service, while others faced long wait times and order mix-ups.

Cleanliness

The store was generally noted for being clean, although some customers mentioned unpleasant odors.

Inventory Issues

Several reviews highlighted frequent shortages of popular items, including donuts and specific drink ingredients.
  • JR
    Jerry Rosales
    Nov 11, 2025
    1.0
    I’ve been coming to this Dunkin’ for a while and it used to be really clean and well-kept, but lately the cleanliness has really gone downhill. There were flies inside and the tables didn’t look wiped down. I hope management brings it back to the standard it used to have
  • VD
    veronica Diaz
    Oct 21, 2025
    5.0
    Excellent customer service. Employees always greet customers with a positive attitude
  • DG
    Debbra Garcia
    Sep 10, 2025
    5.0
    They always serve good stuff at Dunkin' donut.
  • DG
    Daniel Gonzalez
    Aug 24, 2025
    1.0
    Coffee here sucks we ask for pumpkin ice coffee and taste like water amd my wife ask for expresso ice coffee same thing we left the coffee there cuz even the the girl was in a mood not even worth ask or say something
  • JB
    Jessica Bejarano
    Aug 20, 2025
    5.0
    I started coming to this Dunkin location recently and always order the same Caramel Macchiato and a Ham Swiss croissant, never had an issue and always get greeted by the friendly drive thru associate. Never waited for than 5mins, im always in and out which is a plus because I stop before work.

Frequently Asked Questions About Dunkin'

What are the operating hours of Dunkin' in Fontana, CA?

Dunkin' is open every day from 4:00 AM to 8:00 PM.

What special drinks are available at Dunkin' this holiday season?

Try the new Cookie Butter Cloud Latte, the returning Peppermint Mocha, Toasted White Chocolate Signature Lattes, and the new Berry Sangria Refresher.