McDonald's

3.0
962 reviews
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Business Details

2915 Highway K, O Fallon, MO
63366, United States
(636) 978-3155
http://www.mcdonalds.com/
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About

Fast Food RestaurantRestaurantBreakfast RestaurantCoffee ShopBurger JointSandwich Restaurant
McDonald’s USA, LLC, serves a variety of menu options made with quality ingredients to millions of customers every day. Ninety-five percent of McDonald’s approximately 13,500 U.S. restaurants are owned and operated by independent business owners. For more information, visit www.mcdonalds.com, and follow us on social: X, Instagram, TikTok and Facebook.

Details

  • Drive-throughAvailable

Location

McDonald's
2915 Highway K, O Fallon, MO
63366, United States

Hours

Reviews

3.0
962 reviews
5 stars
275
4 stars
162
3 stars
121
2 stars
84
1 star
320

What are people saying?

AI-generated from recent customer reviews

Service Issues

Numerous customers reported poor service, including long wait times, rude staff, and incorrect orders.

Food Quality

Many reviews mentioned declining food quality, with complaints about cold, stale, or improperly prepared items.

Cleanliness

Several customers noted that the restaurant was dirty, with issues such as trash in the parking lot and unsanitary conditions.

Inconsistent Hours

Customers expressed frustration over the location not being truly 24 hours as advertised, with instances of being turned away during late-night hours.

Positive Staff Experiences

Despite the negative feedback, some customers highlighted positive interactions with specific staff members who provided friendly and attentive service.
  • MD
    Ms Dymples
    Nov 8, 2025
    2.0
    This is the 2nd time that I arrive 10mins to 6a and eventhough they are open with workers inside they did not take my order at drive through. I sat for a 2 mins each time. Drove by the windows and I can see ppl inside. This is unacceptable. Starbucks across the street has better service anyway!
  • MJ
    Matt Johnson
    Nov 2, 2025
    1.0
    Service was horrible waited 15 minutes at the drive thru to speak with someone when I had a mobile order asked if I could please have crispy fries got fries and food from 6+ hours ago ordered all large meals to do the monopoly game and got 0 tickets for it drive thru service at window women looked like a alien from another planet gave me her opinions on the food and sauces when I just wanted what I asked on sauces and my mobile order then got told I could only get 3 total sauces after spending $35 will never return to this location
  • SB
    SM Baldwin
    Oct 8, 2025
    1.0
    Horrible service late night! Just shut down late night there is always an issue with systems or certain items not available repeatedly! Won't be back! The quality of this location overall lately has been a downward spiral!
  • JD
    Josh Diel
    Oct 7, 2025
    5.0
    Has a play place and the staff are great to work with!
  • ER
    Ethan Rachell
    Sep 24, 2025
    1.0
    Been to this mcdonalds 4 times late at night between midnight and 4 am over the past two weeks. Everytime, im told by the same employee the system is down. I could see this being the case one time but it hasn't been back to back days and like I said it's all been different times. Sometimes it's even been for a mobile order that even though I placed it on the app and paid they said I can't get it and have to cancel to get a refund. Im normally not one to complain but what are the odds of it being every single different time/day? Why can't I be notified before wasting my time driving there they can't take orders?
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Frequently Asked Questions About McDonald's

What are the regular opening hours for this McDonald's location?

This McDonald's in O'Fallon, MO is open daily from 5 AM to 4 AM the next day, with Monday opening at 6 AM.

Is the McDonald's drive-thru available, and what are its hours?

Yes, the drive-thru is available daily from 5 AM to 4 AM, except Monday when it opens at 6 AM.