Dunkin' Donuts at 4009 Highway K, O Fallon, Missouri. Find store hours, phone number, driving directions and answers to frequently asked questions below.
Just off 4009 Highway K, this Dunkin' Donuts offers a welcoming spot for coffee lovers and donut enthusiasts in O Fallon. Open from early morning until late at night, it provides locals with a reliable place to grab quick breakfast options or refreshing beverages throughout the week.
Address & Contact
Dunkin' Donuts
4009 Highway K,
O Fallon, MO 63368
O Fallon, MO 63368
636-244-0825
Store information verified in 2026
Store Hours
Monday5:00am - 10:00pm
Tuesday5:00am - 10:00pm
Wednesday5:00am - 10:00pm
Thursday5:00am - 10:00pm
Friday5:00am - 10:00pm
Saturday5:00am - 10:00pm
Sunday5:00am - 10:00pm
Store hours may vary. Please call to confirm.
Location & Map
Dunkin' Donuts - O Fallon is located on 4009 Highway K, O Fallon, MO 63368
Nearby Locations
Dunkin' Donuts - O Fallon
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Dunkin' Donuts - Bridgeton
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Frequently Asked Questions
What are the operating hours for this Dunkin' Donuts location?
This Dunkin' Donuts is open Monday-Sunday from 5:00 am to 10:00 pm.
How can I contact this specific Dunkin' Donuts store or get directions?
You can reach the store at (636) 244-0825, and use your favorite mapping app for directions.