Fast Food Restaurant – illustrative photo

Fast Food RestaurantOntario, CA

McDonald's – 4310 Mills Circle, Ontario

Open now · closes 11:00 PM

Directions Call

Illustrative photo

Opening hours

Open now · closes 11:00 PM

Weekly opening hours of McDonald's
Monday	4:30 AM – 11:00 PM
Tuesday	4:30 AM – 11:00 PM
Wednesday	4:30 AM – 11:00 PM
Thursday	4:30 AM – 11:00 PM
Friday	4:30 AM – 11:00 PM
Saturday	4:30 AM – 11:00 PM
Sunday	4:30 AM – 11:00 PM

Local time in Ontario: 9:36 PM (PDT). Holiday hours may differ – call (909) 980-2137 to confirm.

Location & directions

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4310 Mills Circle
Ontario, CA 91764

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About McDonald's

McDonald's is a fast food restaurant located at 4310 Mills Circle in Ontario, California. Our Ontario guide covers 121 food and drink spots, and this is one of them.

McDonald's is open daily, 4:30 AM – 11:00 PM.

Service options include takeout and drive-through. On the menu: burgers.

You can reach the team at (909) 980-2137.

Quick facts

Category: Fast Food Restaurant · Burger
Address: 4310 Mills Circle, Ontario, CA 91764
Phone: (909) 980-2137
Hours: Open daily, 4:30 AM – 11:00 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

Amenities

Wi-Fi

Reviews

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Frequently asked questions

What are McDonald's's opening hours?

Open daily, 4:30 AM – 11:00 PM. Monday: 4:30 AM – 11:00 PM; Tuesday: 4:30 AM – 11:00 PM; Wednesday: 4:30 AM – 11:00 PM; Thursday: 4:30 AM – 11:00 PM; Friday: 4:30 AM – 11:00 PM; Saturday: 4:30 AM – 11:00 PM; Sunday: 4:30 AM – 11:00 PM.

Is McDonald's open on Sunday?

Yes, McDonald's is open on Sundays: 4:30 AM – 11:00 PM.

Where is McDonald's located?

McDonald's is located at 4310 Mills Circle, Ontario, CA 91764.

What is the phone number of McDonald's?

You can call McDonald's at (909) 980-2137.

Does McDonald's offer delivery or takeout?

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