Jack in the Box has always been the place for those who live outside the box. Where you can try new things and order what you want when you want it, while always getting it fast, hot and fresh. If you love the classics, burgers make up the core of our menu with the signature Jumbo Jack®, Ultimate Cheeseburger, the Buttery Jack™ and the Sourdough Jack® on our trademark toasted sourdough. If you seek good value, we offer Jack’s Deals with our famous two tacos, chicken nuggets, Jr. Bacon Cheeseburger and more. We don’t dictate cravings. We serve our full menu, including breakfast, all day every day. Want a burger for breakfast or breakfast sandwich for dinner? You got it.
Burgers, chicken, tacos & breakfast items fill out the menu at this fast-food chain. Based on 352 reviews, the restaurant has received a rating of 3.6 stars. Price $
✔️ Dine-in ✔️ Drive-through ✔️ No-contact delivery

Address:
1780 S Grove Ave, Ontario, CA 91761
Phone: (909) 947-7049
Website:
Hours
| Friday |
Open 24 hours |
| Saturday |
Open 24 hours |
| Sunday |
12–4 AM, 5 AM–10 PM |
| Monday
(Labor Day)
|
4 AM–12 AM
Hours might differ
|
| Tuesday |
Open 24 hours |
| Wednesday |
Open 24 hours |
| Thursday |
Open 24 hours |
Menu
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Photo Gallery
Reviews
Nadine Armijo
Spent $30! For a non toasted sourdough Jack. Toasting it myself. Gave me a cheesecake instead of a chocolate cake. Had us pull to the side for our food and it was cold! And to top it off, did not offer us any sauces and we got nuggets as one of our orders. Horrible!
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Rose Montoya
Manager should train their employee’s about coupons but if they know nothing themselves ?…how are they suppose to train and at least know the difference between a copyright symbol and a expiration date ?
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Eric Zhang
This is my first time to try Jack in the box. This restaurant is clean and not very busy. It’s near a gas station. The food is cheap, I only spend several dollars for my lunch. I like the tacos and chicken sandwiches. The service is good and fast.
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Lydia Moo
I had to repeat my order 4 times and she still got it wrong. I got charged extra for cheese when she forgot it??? She took everything off my sandwhich so it’s just bread and meat
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Richard Reynolds
Was forced to leave the drive through and wait for food in the parking lot when there was no cars behind me in the drive through. Was threatened to receive cold food if I did not wait in the parking lot. The young man at the drive through had a very bad attitude I will never return to this establishment
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aaron sosa
I don’t understand why they only have one person working mornings… she is all by her self.. we always have to park on the side cause they take for ever to give you your order. Last time they gave my whole order wrong, and they took over 20min. I really hope they change something.
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Erick Timm (E.T.)
Late as it is these two guys were great at the job. I couldn’t do much better for what they are doing is tough regardless. And they are understaffed to the most. Good job fellas!
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Andrea Morales
I ordered two hashbrowns and both of them are BURNED COMPLETELY. Crispy and rock hard, completely inedible what kind of service is this? Do you even bother trying to do orders decent?
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Clarisse Garcia
The manager is rude af. She needs to learn customer service get rid of her asap! If she wants to be rude n rush customers off she needs to find another job!!
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Nikko G
Poor Service. Stoned Employees. Thieves.
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