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Wendy's Mexico Loop in O'Fallon, MO

Opens At 6:30 AM Opens At 6:30 AM Opens At 6:30 AM Opens At 6:30 AM Opens At 6:30 AM Opens At 6:30 AM Opens At 6:30 AM
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1390 Mexico Loop Rd E
O'Fallon, MO 63366
US
Main Number
(636) 281-0423(636) 281-0423
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At This Location:

  • Breakfast iconBreakfast
  • Coca-Cola Freestyle iconCoca-Cola Freestyle
  • Mobile Ordering iconMobile Ordering
  • Mobile Payment iconMobile Payment
  • Open Late iconOpen Late
  • Open Late iconOpen Late
  • Open Late iconOpen Late
  • Open Late iconOpen Late
  • Open Late iconOpen Late
  • Open Late iconOpen Late
  • Open Late iconOpen Late

Restaurant Hours

Day of the WeekHours
Monday6:30 AM - 12:00 AM
Tuesday6:30 AM - 12:00 AM
Wednesday6:30 AM - 12:00 AM
Thursday6:30 AM - 12:00 AM
Friday6:30 AM - 12:00 AM
Saturday6:30 AM - 12:00 AM
Sunday6:30 AM - 12:00 AM
Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM Breakfast ends at 6:30 AM
Holiday Hours May Vary

Drive Thru Hours

Day of the WeekHours
Monday6:30 AM - 12:00 AM
Tuesday6:30 AM - 12:00 AM
Wednesday6:30 AM - 12:00 AM
Thursday6:30 AM - 12:00 AM
Friday6:30 AM - 12:00 AM
Saturday6:30 AM - 12:00 AM
Sunday6:30 AM - 12:00 AM
$8 JBC Meal Deal

Wendy’s $8 JBC Meal Deal REALLY brings the meat.

Right now at Wendy’s your 8 bucks will get you TWO JBC’s PLUS medium fries AND a medium soft drink. That’s TWO of the #1 selling bacon cheeseburgers in all fast food, for just 8 bucks.
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Freshen Up Your Morning.

Freshen Up Your Morning.

Wendy's breakfast can turn any bland morning into a flavorful one. Like with a Breakfast Baconator® or a Honey Buddy or even a Sausage Breakfast Burrito. It's a breakfast you'll actually want to wake up to.
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Join Wendy's Rewards
Join Wendy's Rewards!
The only thing better than eating Wendy’s, is earning more Wendy’s while you eat. And that, friends, is what Wendy’s Rewards is all about. Sign up today and make eating at your favorite restaurant even better.
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Wendy's Delivery
Wendy's Delivery
Whether you're hungry for breakfast, lunch, or dinner, there’s more than one way to get Wendy’s delivered. You can start your delivery order straight from our app, or head to any of our official third-party partners, DoorDash, Grubhub, Postmates, and Uber Eats. So, you can get your Wendy’s favorites from your favorite delivery app anytime you want it.
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When the Blues Win, You Win!

Score a FREE Small Frosty® at any participating Wendy's in the St. Louis area - no purchase necessary.

When the St. Louis Blues win, hurry to a participating St. Louis area Wendy’s* in Illinois or Missouri for a FREE Small Frosty Classic – no purchase necessary.

You’ll need to act fast though – this offer is only good for 24 hours after EACH Blues win!

*Limit one (1) free small Frosty Classic per person the following 24 hours after every St. Louis Blues win. No purchase necessary.  While supplies last. Offer valid upon request at participating St. Louis area Wendy's during the 2025-2026 regular season. A la carte only. Not valid for digital or delivery orders or with any other discount or offer. No substitutions. No rain checks. Subject to cancellation at any time. © 2025 Quality Is Our Recipe, LLC

List of Participating Wendy’s Locations

Featured Menu Items

  • Taco Salad
    Taco Salad
    Made fresh daily with romaine lettuce, shredded cheddar cheese, diced tomatoes, fire roasted corn, chile lime taco strips, our famous, hearty chili and creamy salsa dressing. A fresh take on tacos perfect for Tuesdays, Wednesdays, or any other days for that matter.
  • Chili
    Chili
    Perfectly seasoned and positively irresistible. Red’s kind of our thing, you know.
  • Baconator®
    Baconator®
    A half-pound* of fresh beef, American cheese, 6 pieces of crispy Applewood smoked bacon, ketchup, and mayo. Carnivores rejoice!
  • Crispy Chicken BLT Biggie™ Bag
    Crispy Chicken BLT Biggie™ Bag
    Juicy white meat, lightly breaded and seasoned, topped with Applewood smoked bacon, crisp lettuce, tomato, cheese, and mayo. A classic taste, perfectly reinvented.
  • Classic Chocolate Frosty
    Classic Chocolate Frosty
    The Chocolate Frosty® was born out of Dave’s desire for a signature dessert to go with his vision of the perfect meal. Thick enough to use a spoon, smooth enough to use a straw, and perfect when enjoyed on the end of a fry.
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Featured Menu Items

  • Breakfast Biggie Bundles
    Breakfast Biggie Bundles
    Grilled, breakfast sausage on a soft buttermilk biscuit. Simple breakfast perfection.
  • Honey Butter Chicken Biscuit
    Honey Butter Chicken Biscuit
    Juicy white meat, lightly breaded and seasoned, and topped with maple honey butter on a fluffy buttermilk biscuit. It’s sweet, it’s savory, and it’s a great reason to get out of bed in the morning.
  • Breakfast Burrito, Bacon
    Breakfast Burrito, Bacon
    Fresh-cracked grade A eggs, Applewood smoked bacon, American cheese, and seasoned potatoes smothered in a creamy Swiss cheese sauce and wrapped in a warm, flour tortilla with Cholula® Hot Sauce on the side. Breakfast will never burrito the same. Cholula is a registered trademark of SPICY LIQUID LLC © 2023, used under license.
  • Cinnabon® Pull-Apart
    Cinnabon® Pull-Apart
    Warm, buttery, dough bites baked together with world-famous Cinnabon®? cinnamon and topped with their signature cream cheese frosting. Ooey, gooey corporate synergy. Cinnabon® and the Cinnabon® logo are registered trademarks of Cinnabon Franchisor SPV LLC. ©2024 Cinnabon Franchisor SPV LLC.
  • Chocolate Frosty® Cream Cold Brew
    Chocolate Frosty® Cream Cold Brew
    Smooth, cold-brewed coffee, creamer made from our classic Frosty, and rich chocolate syrup all swirled together and served over ice.
  • Breakfast Baconator®
    Breakfast Baconator®
    Grilled sausage, American cheese, Applewood smoked bacon, a fresh-cracked grade A egg, (deep breath) more cheese and more bacon all covered in swiss cheese sauce. Don’t just break your fast. Destroy it.
  • Breakfast Burrito, Sausage
    Breakfast Burrito, Sausage
    Fresh-cracked grade A eggs, grilled savory sausage, American cheese, and seasoned potatoes smothered in a creamy cheese sauce and wrapped in a warm flour tortilla with Cholula® Hot Sauce on the side. Breakfast will never burrito the same. Cholula is a registered trademark of SPICY LIQUID LLC © 2023, used under license
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About Wendy's 1390 Mexico Loop Rd E

At Wendy’s in O'Fallon, MO, we got breakfast, lunch, and dinner. From fresh-cracked eggs to fresh, never-frozen beef, We Got You®.

Our square-pattied hamburgers always bring the freshness, our chicken sandwiches changed the game, and you know you love our nuggets. But we also got fresh-made salads, hot and crispy fries, even old-school chili and baked potatoes. You can start strong with one of our new breakfast sandwiches and a coffee drink, or satisfy your sweet tooth with a Frosty® or something from our bakery. From Kids’ Meals to meal deals, our menu is stacked with value.

So, stop by Wendy’s at 1390 Mexico Loop Rd E in O'Fallon, MO. And don’t forget to download our app for restaurant info like hours, menu, nutrition, and exclusive deals.

Fresh beef available in the contiguous U.S., Alaska and Canada.
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Frequently Asked Questions
Is Mexico Loop Wendy's still open?
Yes! Just as we are committed to serving the best quality food every single day, we are committed to serving you during this time.
Is Wendy’s delivery available near me?
To find out if delivery is available near you, go to our app or order.wendys.com. and enter your delivery address into the “Get It Delivered” Search Delivery Address field.
Is Wendy’s hiring in O'Fallon, MO?
To check if this Wendy’s location is currently hiring, visit our Careers page, enter O'Fallon, MO into the appropriate form fields and submit your search. If any jobs are currently available at this location or one nearby, they should appear within the results list. If there are no open positions at your preferred restaurant at the time of your search, we recommend checking back often.
How do I contact Wendy’s with questions or feedback about this location?
Feedback about your experience with this Wendy’s location may be provided to our Customer Care team. To reach out through Live Chat or to leave a message, please visit our Contact page; use 888-624-8140 to call. You may also provide feedback by filling out a Wendy’s Customer Satisfaction Survey. You will need to refer to your receipt for the restaurant number, date and time of visit. If you need to reach this location directly, please call (636) 281-0423.
Where can I buy Wendy’s gift cards?
Wendy’s gift cards are available in-restaurant, through several brick & mortar and online retailers and through our own online shop. To place an individual or bulk order online, please visit our gift card portal. Already have a gift card? Check your balance!
Where can I find menu pricing?
Pricing may vary slightly depending on your location. To see menu prices for the Wendy’s of your choice, please visit order.wendys.com. or the mobile app. Once you’ve selected your location, prices should appear for each menu item.
Where can I find nutrition and allergen information?
This information can be found on our menu website, within our mobile app and in-restaurant. To access via our website or mobile app: Click through to a specific menu item and then select the blue “Nutrition & Allergens” link found underneath the description and calorie count. If you are on the Wendy’s website or the mobile app, you’ll notice that the nutrition statistics will update as you customize your order. A nutrition information poster is also located in each Wendy’s restaurant. A crew member will be happy to assist in directing you to it.
Does Mexico Loop Wendy’s serve breakfast?
Yes, this Wendy’s location in O'Fallon, MO serves breakfast! Go to order.wendys.com. or the mobile app, select this location, and choose from our selection of breakfast combos, croissant, biscuit and classic sandwiches, coffee and sides.