In-N-Out Burger

2235 S Mountain Ave, Ontario
(800) 786-1000

Recent Reviews

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Marcus Duran

Love this inn n out on mountain n phillideilphia

Atmosphere: 5

Food: 5

Service: 5

Hyung Lee (sky007)

Wonderful burger

Atmosphere: 5

Food: 5

Service: 5

Richard Duran

Service was excellent as there was always someone ready to take your order and customers were friendly.

Atmosphere: 5

Food: 5

Service: 5

Brian Viramontes

Great place but I forgot to ask about my 4 pack of pre rolls

Atmosphere: 5

Service: 5

J R

Very bad location. This location off Mountain Ave and 60 FWY, is extremely small with very limited parking spaces, and drive-through line back into the very busy street, causing traffic issues, pedestrian and car safety issues. Getting in and out of the parking is very dangerous and a traffic hazard.

The city should force this location to be relocated or closed due to traffic hazards. Inside is even smaller.

Atmosphere: 1

Food: 3

Service: 2

Elvira Trevino

Great customer service, we are extremely pleased with how kind and attentive the staff is. Special mention for Jonah, he was awesome, completely took care of us, management has a jewel in him for sure! God Bless!

Atmosphere: 5

Food: 5

Service: 5

Timothy Liska

Super fast and easy to go no issues at all

Atmosphere: 4

Food: 5

Service: 4

ASAHI LEO

I ordered extra tomato. But there were absolutely no extra tomato slices in the burger, and the slices were even smaller than usual. This happened repeatedly. I suspect the staff did it on purpose. Compared to other In-N-Out restaurants, this place has poor food quality and service. I rarely leave reviews, but this one is truly awful.

Atmosphere: 1

Food: 1

Service: 1

Maribel Ortiz

They have to clean up the tables ASAP

Atmosphere: 4

Food: 5

Service: 5

Brian

Messed up on my sons burger again. I asked for no cheese and it came with cheese on it. Pay attention to details! Just listen. It's not that hard.

Food: 1

Service: 1

Николай Иванов

As always, very tasty and everything is top notch.

Atmosphere: 5

Food: 5

Service: 5

Rodger Aaron

Long lines of course kind of annoying but foos is always fresh, great customer service loved it here.

Atmosphere: 5

Food: 5

Service: 5

Recommended dishes: Double-Double Burger and Fries, Animal Fries

David

Best location & top notch service! Employees are very friendly and I am normally out within 10 minutes since I order inside. Clean restrooms thanks everyone

Atmosphere: 5

Food: 5

Service: 5

Savanna Collins

My husband and I ordered two grilled cheese sandwiches and two cheese fries. When we got home, we discovered chunks of meat inside one of the grilled cheese sandwiches (see photo). We're both vegetarians, so this wasn’t just a mix-up. It was a serious breach of trust and food safety.

It appears someone in the kitchen may have started preparing a cheeseburger, realized the mistake, and made the poor judgment call to remove the meat and serve the sandwich anyway. That kind of decision shows a lack of understanding about food safety and dietary restrictions.

This is not about being picky. For people with dietary needs, whether vegetarian, religious, or allergy-related, cross-contamination matters. Once meat has been part of the dish, it is no longer suitable. Assuming otherwise can be harmful and dismissive.

Thankfully, customer assistance handled the situation professionally and reimbursed our meal, which we truly appreciate. We are sharing this experience to raise awareness and encourage more thoughtful handling of dietary-specific orders in the future.

Food: 2

Service: 4

Stephanie Garcia-Hayes

The best always.

Atmosphere: 5

Food: 5

Service: 5

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