Fast Food Restaurant – illustrative photo

Fast Food RestaurantSaint Charles, MO

Sonic – 3851 Elm Street, Saint Charles

Closed · opens tomorrow 9:00 AM

Directions Call

Illustrative photo

Opening hours

Closed · opens tomorrow 9:00 AM

Weekly opening hours of Sonic
Monday	9:00 AM – 8:00 PM
Tuesday	9:00 AM – 8:00 PM
Wednesday	9:00 AM – 8:00 PM
Thursday	9:00 AM – 8:00 PM
Friday	9:00 AM – 9:00 PM
Saturday	9:00 AM – 9:00 PM
Sunday	9:00 AM – 8:00 PM

Local time in Saint Charles: 11:31 PM (CDT). Holiday hours may differ – call (636) 925-0044 to confirm.

Location & directions

Tap for directions

3851 Elm Street
Saint Charles, MO 63301

Google Maps Apple Maps Waze

About Sonic

Looking for a fast food restaurant in Saint Charles? Sonic is at 3851 Elm Street, Saint Charles, Missouri. It is one of 75 places to eat and drink we list in Saint Charles.

Sonic is open 7 days a week, usually 9:00 AM – 8:00 PM.

You can visit for takeout and drive-through. On the menu: burgers.

For questions or orders, call (636) 925-0044.

Quick facts

Category: Fast Food Restaurant · Burger
Address: 3851 Elm Street, Saint Charles, MO 63301
Phone: (636) 925-0044
Hours: Open 7 days a week, usually 9:00 AM – 8:00 PM
Listing updated: September 2026 · Suggest an edit

Popular times (estimated)

6AM

9AM

12PM

3PM

6PM

9PM

Estimated from typical visit patterns for fast food restaurants and this venue’s opening hours – not live data.

Features & amenities

Service options

Takeout
Drive-through

Reviews

Write a review

No visitor reviews yet. Been to Sonic? Share your experience to help other diners.

Frequently asked questions

What are Sonic's opening hours?

Open 7 days a week, usually 9:00 AM – 8:00 PM. Monday: 9:00 AM – 8:00 PM; Tuesday: 9:00 AM – 8:00 PM; Wednesday: 9:00 AM – 8:00 PM; Thursday: 9:00 AM – 8:00 PM; Friday: 9:00 AM – 9:00 PM; Saturday: 9:00 AM – 9:00 PM; Sunday: 9:00 AM – 8:00 PM.

Is Sonic open on Sunday?

Yes, Sonic is open on Sundays: 9:00 AM – 8:00 PM.

Where is Sonic located?

Sonic is located at 3851 Elm Street, Saint Charles, MO 63301.

What is the phone number of Sonic?

You can call Sonic at (636) 925-0044.

Does Sonic offer delivery or takeout?

Delivery is not listed for Sonic, and takeout is available. Listed service options: takeout and drive-through.