Jack In The Box
$ • Fast Food, Burgers, Tacos
Hours:
990 N Mountain Ave, Ontario
(909) 986-5878
About Jack in the Box
Customers' Favorites
Bacon & Swiss Buttery Jack
Sausage Breakfast Jack
Jr Bacon Cheeseburger
Grilled Chicken Salad
Classic Buttery Jack
Chicken Fajita Pita
Chicken Club Salad
Chicken Sandwich
Tacos and Fries
Chicken Nuggets
Jack in the Box Reviews
Ratings
Menu
Add a Menu
Hours
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
People in Ontario Also Viewed
Subway
Sandwich Shop, Fast Food
Taco Bell
Fast Food, Mexican
McDonald's
Fast Food, Burgers, Coffee & Tea
Jack in the Box in Ontario, CA is a 24/7 spot offering delicious food. The restaurant's parking is clean and free, making it convenient for customers. However, there have been issues with their operating hours not matching what was posted, leaving some customers disappointed. Despite some inconsistencies, most visits have decent service. As for the food, the fried tacos and burgers are a highlight, with the burgers being not dry and decently portioned, and the tomato and lettuce appearing fresh. The restaurant brings back memories for some customers, especially those from the east coast where the chain has lost many locations. Overall, Jack in the Box remains a popular place for tasty food any time of day.