Original Blend Iced Coffee
Freshly brewed and full of flavor, our Iced Coffee is the perfect pick-me-up any time of day or night, giving you the boost you need to keep on running.
Brand Certified
Dunkin'
3.9(551 reviews)
Certified by Dunkin' • Jun 28, 2026
Business Details
1220 Highway K, O Fallon, MO
63366, United States
Certified by Dunkin' • Jun 28, 2026
(636) 385-6688
Certified by Dunkin' • Jun 28, 2026
https://www.dunkindonuts.com
Certified by Dunkin' • Jun 28, 2026
About
Certified by Dunkin' • Jun 28, 2026
Coffee ShopDonut ShopBreakfast RestaurantBakeryBagel ShopFast Food RestaurantTake Out RestaurantDunkin'
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 O Fallon, MO 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
Certified by Dunkin' • Jun 28, 2026
Hours
Certified by Dunkin' • Jun 28, 2026
Monday5:00 AM - 8:00 PM
Tuesday5:00 AM - 8:00 PM
Wednesday5:00 AM - 8:00 PM
Thursday5:00 AM - 8:00 PM
Friday5:00 AM - 8:00 PM
Saturday5:00 AM - 8:00 PM
Sunday5:00 AM - 8:00 PM
Menu
1 menu · 73 items
Explore offerings from Dunkin' on 1220 Highway K in O Fallon, with popular iced drinks, hot drinks, frozen drinks, and sandwiches & wraps available at this location.
Dunkin' Menu
73 items
Iced Drinks
Crisp. Cold. Delicious. Ask to try your favorite beverages served over ice.
Cold Brew
An ultra-smooth, full-bodied coffee like no other.
Cold Brew with Sweet Cold Foam
An ultra-smooth, full-bodied coffee topped with sweet cold foam.
Nitro Cold Brew
Our take on the perfect pour! Our Nitro Coffee features Dunkin's Cold Brew Coffee, infused with nitrogen for a bold taste with a smooth and creamy texture.
Nitro Cold Brew with Sweet Cold Foam
Cold Brew Coffee infused with nitrogen and topped with Sweet Cold Foam for a bold taste with smooth and creamy texture.
Iced Latte
Rich espresso combined with milk and served over ice.
Caramel Craze Iced Signature Latte
Rich espresso, milk, and caramel swirl topped with whipped cream, caramel drizzle, and cinnamon sugar topping to take your latte to the next level.
Cocoa Mocha Iced Signature Latte
Rich espresso is combined with a decadent, chocolatey mocha swirl and topped with whipped cream, mocha drizzle, and hot chocolate powder.
Iced Cappuccino
Espresso blended with milk and served frothy over ice.
Iced Macchiato
Made with layers of creamy milk and two shots of espresso then served over ice.
Iced Americano
Our Iced Americano blends two shots of Dunkin's 100% Rainforest Alliance Certified espresso richness with water for a refreshing, espresso-forward cup of woah!
Dunkin' Refreshers
Made with B vitamins and energy from green tea. Available in Strawberry Dragonfruit, Mango Pineapple and Blueberry Breeze flavors.
Dunkin' Lemonade Refreshers
Your favorite fruit flavors combined with refreshingly sweet lemonade. Available in Strawberry Dragonfruit, Mango Pineapple and Raspberry Watermelon flavors.
Dunkin' Energy
A new lineup of fizzy energy drinks from Dunkin' made with vitamins & minerals and caffeine from guarana for a revitalizing burst of energy.
Lemonade
Our classic Dunkin' Lemonade is slightly tart and refreshingly sweet.
Iced Matcha Latte
Sweetened matcha green tea blended with milk.
Iced Chai Latte
A sweetened blend of chai spices, including cinnamon, cardamom and nutmeg, combined with milk.
Iced Tea
Our refreshing, revitalizing teas are freshly brewed in store each day and served over ice.
Iced Tea Lemonade
Ice Tea combined with our sweet and tart Lemonade.
Dunkin' Energy Punch
Dunkin' Energy Punch combines one 16 oz. can of Rockstar® Energy Drink mixed with either classic Blue Raspberry and Strawberry flavors, served over ice. Contains 160 mg of caffeine.
Hot Drinks
Freshly crafted beverages served hot in a variety of delicious flavors.
Original Blend Coffee
Our coffee beans are freshly ground moments before brewing, and we continually brew throughout the day, so you'll have a freshly brewed cup of coffee every time. Always made just the way you like it, it has that signature smooth taste you can't live without.
Dunkin' Midnight Coffee
Rich, intensely dark, chocolatey notes.
Box O' Joe® Coffee
Contains ten 10oz servings which is equivalent to ten small cups of Dunkin' coffee.
Latte
Rich espresso topped with frothy milk.
Caramel Craze Signature Latte
Rich espresso, milk, and caramel swirl topped with whipped cream, caramel drizzle, and cinnamon sugar topping to take your latte to the next level.
Cocoa Mocha Signature Latte
Rich espresso is combined with a decadent, chocolatey mocha swirl and topped with whipped cream, mocha drizzle, and hot chocolate powder.
Cappuccino
Made with espresso and steamed milk.
Macchiato
Made with creamy milk and topped with two shots of espresso.
Americano
Our Hot Americano puts the oh! in Americano by combining two shots of Dunkin’s 100% Rainforest Alliance Certified™ espresso with hot water creating a rich, robust drink.
Espresso
Made from the finest, high-quality Arabica beans.
Tea
Steeped to perfection.
Matcha Latte
Sweetened matcha green tea blended with milk.
Chai Latte
A sweetened blend of chai spices, including cinnamon, cardamom and nutmeg, combined with milk.
Hot Chocolate
Cozy up with one of our creamy, craveable hot chocolates.
Box O' Joe® Hot Chocolate
Our rich, delicious hot chocolate is available by the box! Pick some up to keep the crowd warm and cozy.
Frozen Drinks
Freshly blended creations that turn your favorite flavors into refreshingly frozen treats.
Frozen Coffee
Made with real Dunkin’ coffee.
Caramel Creme Frozen Coffee
Dunkin’s smooth and creamy Frozen Coffee with caramel and vanilla flavors, topped with whipped cream, caramel drizzle, and a dusting of cinnamon sugar.
Triple Mocha Frozen Coffee
Dunkin’s smooth and creamy Frozen Coffee with rich mocha flavors, topped with whipped cream, mocha drizzle, and hot chocolate powder to top it all off.
Butter Pecan Frozen Coffee
Dunkin's smooth and creamy Frozen Coffee with Butter Pecan flavors.
Frozen Matcha Latte
Sweetened matcha green tea blended with milk.
Frozen Chocolate
Our refreshing Frozen Chocolate is ready to customize with your choice of flavor swirl, drizzle and whipped cream.
Coolatta®
Looking for the ultimate frozen, fruity refreshment? Our Coolatta will do the trick. One sip and refreshment begins.
Reviews
3.9
551 reviews
5 stars
318
4 stars
75
3 stars
35
2 stars
34
1 star
89
- MLMatthew LaBrackMay 7, 20261.0They dont know how to make large frozen coffees
- FAFatimah AApr 10, 20265.0I had a great experience at Dunkin’ Donuts! The service was excellent, and the staff were so friendly and welcoming. The employee who helped me was especially kind, professional, and made my visit enjoyable. Thank you for the great service and for keeping the place clean and inviting. I truly appreciate the wonderful customer care!
- MFMegan FlahanMar 6, 20265.0I ordered my food and drink online and then something came up and I was not able to pick it up for 2 hours. Instead of making me feel bad, the gentlemen remade my drink fresh and were so kind to my kids while we waited a min. I was already having a rough day, but this trip to this DD was very positive. The donuts & bagel were very fresh and tasty too. Well done DD!!
- JTJames TaoFeb 22, 20261.0I ordered a drink through the drive-thru at this Dunkin’ location and had a disappointing experience. While placing my order, we asked to replace the drink with a different one before we had finished ordering. The male employee responded, “No, we already made it,” even though we were still in the middle of our order. I’m not sure how the drink was prepared even before we had completed the order. It wasn’t a huge issue for us, but it didn’t feel like the best customer service practice. I hope the team can improve communication during the ordering process to provide a better experience for customers in the future.
- MHMiles HoffmannFeb 20, 20265.0The Crew Members are very Nice Very accomadating: Shout out to: crew
Frequently Asked Questions About Dunkin'
What are the operating hours for Dunkin' in O'Fallon, MO?
Dunkin' in O'Fallon, MO is open every day from 5:00 AM to 8:00 PM.
Does this Dunkin' location offer delivery and curbside pickup services?
Yes, this Dunkin' location offers both delivery and curbside pickup services for customer convenience.
What special seasonal beverages are available at Dunkin' this holiday season?
Enjoy the new Cookie Butter Cloud Latte, Peppermint Mocha, Toasted White Chocolate Signature Lattes, and the Berry Sangria Refresher during the holiday season at Dunkin'.
Can I order ahead using a mobile app to skip the line at Dunkin'?
Yes, you can order ahead using the Dunkin' mobile app available on both Apple and Android devices for a fast grab and go experience.
What meals are served at the Dunkin' O'Fallon location?
This Dunkin' location serves breakfast, lunch, and brunch to satisfy your cravings throughout the day.
Does this Dunkin' location have a drive-thru service?
Yes, the Dunkin' in O'Fallon, MO has a drive-thru for quick and convenient service.
Which nearby restaurants can I visit after grabbing coffee at Dunkin'?
You can visit nearby restaurants like Monical's Pizza, Jimmy John's, Soulard Gyro, Qdoba, Fazoli's, or Panera Bread after enjoying your coffee at Dunkin'.
Are there any nearby retail stores close to Dunkin' in O'Fallon?
Yes, several retail stores nearby include Mattress Direct, Van's Hallmark Shop, Mattress Source, The Bedroom Store, and AutoZone.
What nearby services can complement my visit to Dunkin'?
Near Dunkin', you can find services like FedEx Office Print & Ship Center, Walmart Pharmacy, and Southwestern Hearing Centers for your convenience.
Is Dunkin' in O'Fallon family-friendly and what payment methods are accepted?
Yes, Dunkin' welcomes families and children. They accept both debit and credit card payments for your convenience.
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