Wendy's at 1390 Mexico Loop Rd E, O Fallon, Missouri. Find store hours, phone number, driving directions and answers to frequently asked questions below.
This Wendy's location at 1390 Mexico Loop Rd E in O Fallon, Missouri offers a variety of customizable menu items and fresh ingredients. Customers can enjoy made-to-order hamburgers, crispy chicken sandwiches, and refreshing beverages. The restaurant is open late into the night to serve its patrons.
Address & Contact
Wendy's
1390 Mexico Loop Rd E,
O Fallon, MO 63366
O Fallon, MO 63366
636-281-0423
Store information verified in 2026
Store Hours
Monday10:00am - 12:00am
Tuesday10:00am - 12:00am
Wednesday10:00am - 12:00am
Thursday10:00am - 12:00am
Friday10:00am - 12:00am
Saturday10:00am - 12:00am
Sunday10:00am - 12:00am
Store hours may vary. Please call to confirm.
Location & Map
Wendy's - O Fallon is located on 1390 Mexico Loop Rd E, O Fallon, MO 63366
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Frequently Asked Questions
How can I get directions to this Wendy's location?
You can call the restaurant at 636-281-0423 for directions to 1390 Mexico Loop Rd E, O Fallon, Missouri.
What are the operating hours of this Wendy's store in O Fallon on a typical day?
This Wendy's is open from 10:00 AM to midnight every day of the week.