Sonic Drive-In

3.6(2,388)

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Location & Hours

Address

441 N Placentia Ave
Fullerton, California 92831
United States

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Hours

Open • Closes Thursday at 2:00 AM

Monday10:00 AM - 2:00 AM

Tuesday10:00 AM - 2:00 AM

Wednesday10:00 AM - 2:00 AM

Thursday10:00 AM - 2:00 AM

Friday10:00 AM - 2:00 AM

Saturday10:00 AM - 2:00 AM

Sunday10:00 AM - 2:00 AM

Contact & Links

Contact Information

(714) 223-1415

Restaurant Link

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About Sonic Drive-In

Fast-food burger & fries joint with an old-school feel, including retro drive-in service.

Price range: inexpensive

Google-sourced data last fetched on June 26, 2025.

3.6/5

Based on 2,388 reviews

Recent Reviews

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Brandon Gibson

11 months ago

If you've ever been to a Sonic, you know what to expect. While it is fast food, there's just something nostalgic and simple about the way they do things. A multitude of options including chicken, burg...

Jonathan Knight

6 months ago

I've had nothing but problems at this sonic. What in the WORLD is this bacon???? I only went to sonic today for mozzarella sticks, and for the SECOND TIME they didn't have marinara sauce, like not hav...

Rebecca Pest

2 weeks ago

This is one of the worst sonics I've been too. And Ive been to dozens. I travel from California to Tennessee to Florida and back. I visited some in Lebanon Tennessee with bathrooms larger than my firs...

Rick

3 months ago

I make the rounds to all of the Sonics here in Orange County because I love their real fruit slushes. If you use the app a medium is less than three bucks. It's one love out of my many that I can affo...

Amara

5 months ago

Everyday is a Cherry limeade day in Fullerton. There are no truer words. I live for Cherry limeade. My blood is Cherry limeade. My existence is only for the limeade. Thank you sonic for fueling my add...

What People Are Saying

Overall Experience

Customer experiences are mixed, with some expressing strong loyalty and others encountering significant issues. The average rating suggests a generally acceptable but inconsistent dining experience.

Customer Favorites

Cherry limeades and real fruit slushes are highly praised and considered favorite items by several customers. Mozzarella sticks, while liked, sometimes suffer from missing marinara sauce.

Atmosphere & Service

Staff friendliness is noted as a positive aspect, though inconsistency in service quality is also observed, with some customers reporting unhelpful or annoyed carhops. The presence of homeless individuals and issues with restroom access and cleanliness are concerns.

Value & Quality

Some customers find the pricing higher than other locations of the same chain, particularly for customized drinks. Food quality is inconsistent, with complaints about bacon and the availability of real fruit.

Areas for Improvement

Ensuring consistent availability of menu items like marinara sauce and real fruit is crucial. Addressing the presence of homeless individuals, maintaining restroom access, and improving overall cleanliness are also necessary.

Recent Trends

Recent reviews highlight issues with incorrect orders, higher prices, and the presence of homeless individuals impacting the dining experience. There's also inconsistent food quality such as syrup instead of real fruit in drinks.