In-N-Out Burger

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Ontario
E Ontario Mills Pkwy
In-N-Out Burger

In-N-Out Burger is a popular fast food restaurant located on E Ontario Mills Pkwy in Ontario. They specialize in serving delicious burgers using juicy 100% beef patties and freshly baked buns, hand-cut fries made from whole potatoes, and real ice cream shakes. Customers can enjoy their meal at the sit-down dining room or take advantage of the single drive-thru lane. Offering dinner and lunch, In-N-Out Burger has been serving quality fast food the old-fashioned way since 1948.
(2280)

Recent social media posts

10/16/2026

Lynsi Snyder and Terry Crews share a conversation about IN-N-OUT®'s legacy, values, and thoughtful growth through the years. The full interview drops on 10/22.

10/15/2026

Just dropped! Check out our two new tees and freshen up your collection at shop.in-n-out.com.

10/14/2026

Fries made fresh every step of the way, with freshness you can taste in every bite

10/13/2026

Lynsi Snyder and Terry Crews talk about IN-N-OUT®’s California roots and the legacy that’s been almost 78 years in the making. The full video drops October 22.

10/11/2026

Shop now during National Substance Abuse Prevention Month and make a difference! The net proceeds of all purchases in this collection will support Slave 2 Nothing Foundation and the fight against substance abuse.

This special collection is designed by In-N-Out® Owner and President, Lynsi Snyder, and her drag racing team. Lynsi’s father, Guy Snyder, was also a muscle car lover and drag racer, and his nickname was the “Flying Dutchman®”. When Lynsi started racing at the age of 18, she wanted her racing team’s name to race under his team name in his memory.

Shop the full Flying Dutchman Racing Collection at shop.in-n-out.com!
NHRA

10/07/2026

We’re counting down to something special! Join Lynsi Snyder and Terry Crews for a conversation you won’t want to miss as we celebrate IN-N-OUT®’s 78th Anniversary.

10/06/2026

Since 1948, we have been committed to serving our Customers quality and freshness. Every burger, every time.

10/04/2026

For 10 years, Slave 2 Nothing® has remained committed to its unwavering mission of restoring lives and freeing people from being enslaved to any substance or person.

My husband, Sean, and I felt called to step into this work. We saw how we could help raise awareness and, ultimately, contribute to educating and assisting with solutions to eliminate substance abuse and human trafficking.

We’re proud to say that since its founding, Slave 2 Nothing has granted over $23 million to organizations fighting substance abuse and human trafficking in the 10 states IN-N-OUT® does business. We cover all costs associated with Slave 2 Nothing, ensuring that 100% of every dollar raised goes to carefully vetted organizations supporting our causes.

None of this would be possible without you, and we’re deeply grateful for all the support over the last decade. To learn more about how your gift helps individuals experience freedom, please visit slave2nothing.org.

10/01/2026

Addiction can affect anyone, and the signs aren’t always easy to see.

This October, during National Substance Abuse Prevention Month, we’re supporting Slave 2 Nothing® and its work to help individuals and families affected by substance abuse.

Throughout the month, In-N-Out Burger® will match donations 3-to-1, up to $300,000, with 100% of funds raised supporting organizations dedicated to fighting substance abuse in our communities.

Join us in breaking the chains of addiction by donating at any In-N-Out Burger location or at slave2nothing.org.

09/27/2026

Your birth month reveals your order. Comment yours below!

09/23/2026

Our fries have been served fresh since 1948.

09/18/2026

Happy ! Tag a friend you want to grab a Cheeseburger with today!

09/15/2026

Keeping it classic with an Double-Double® made fresh every time. How do you order yours?

Address

4310 E Ontario Mills Pkwy
Ontario, CA
91764

For public transport: Take the Metrolink train to the Ontario Station. Exit on Holt Blvd and transfer to bus route 61 heading towards Ontario Mills. Get off at E Ontario Mills Pkwy and walk about 10 minutes east to reach the restaurant.

For driving/parking: Take I-10 East and exit on Milliken Ave. Turn right onto E Milliken Ave, then left onto Concours St. Turn right onto N Milliken Ave and left onto E Guasti Rd. Turn left onto E Ontario Mills Pkwy and the restaurant will be on your right-hand side. There is parking available in the shopping center lot where the restaurant is located.

Opening Hours

Monday	10:30am - 1am
Tuesday	10:30am - 1am
Wednesday	10:30am - 1am
Thursday	10:30am - 1am
Friday	10:30am - 1:30am
Saturday	10:30am - 1:30am
Sunday	10:30am - 1am

Telephone

+18007861000

Website

https://locations.in-n-out.com/144

Alerts

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Chain

In-N-Out Burger

What people say

Fast food restaurants are known for their quick service and convenience, but what sets In-N-Out Burger apart is their commitment to quality. From the moment you take your first bite of their juicy 100% beef patty burger, you can taste the difference that fresh ingredients make. The buns are freshly baked, the produce is crisp and flavorful, and the fries are hand-cut from whole potatoes.

In-N-Out Burger has been doing fast food the old-fashioned way since 1948, and it shows in every aspect of their menu. Whether you're in the mood for a classic hamburger or cheeseburger, or want to indulge in a delicious shake made with real ice cream, In-N-Out Burger has something for everyone.

Located on E Ontario Mills Pkwy, this fast food restaurant offers a dining experience that is both convenient and satisfying. So if you're looking for a delicious meal that's made with quality ingredients and served up with a smile, look no further than In-N-Out Burger. Quality you can taste®.